Showing posts with label compur. Show all posts
Showing posts with label compur. Show all posts

Sunday, 12 April 2015

Voigtländer Bessa 66


This is a medium format folder from the German firm of Voigtländer. It dates from between 1938 and 1940. This model was also made after WWII from 1946 to 1950, but my camera is a very early model - more later. There was also a cheaper version available with a folding viewfinder and no automatic framing.  It is extremely similar to the later Perkeo that replaced it in 1950.

Voigtländer Bessa 66 (C) John Margetts



This camera has a lot of 'modern' features that make it stand out from earlier folding cameras. These include a body shutter release and automatic frame advance - no need to look in the red window when advancing the film, the camera spaces the film automatically (more or less, it does not work too well on my camera. I used the red window).

First, a basic description.  The camera measures 125 mm wide by 40 mm thick and 80 mm high when folded and 95 mm thick when open. This is very much a pocket camera even if the pocket needs to be robust enough to take the weight - 524 g without a film. As standard, the top plate is uncluttered. It is made from chrome plated brass  and has a reverse-Galilean viewfinder right at the right-hand end. On the opposite end is the film advance knob. Close to the advance knob is a frame counter - one of the 'modern' features I mentioned. That should be all that is on the top plate but a previous owner has glued an accessory shoe on using a large amount of epoxy glue.  Close to the rewind knob, on both the front and back faces of the top plate are two sliders. Without an instruction manual, it is not clear what these do. The one on the front clearly advances the frame counter and seems to free the advance system to allow the film to be advanced. When the film moves through the camera, a feeler shaft rotates and this serves to measure the amount of film that has moved and the film advance locks when one frame (62 mm) has moved. There is no clear use for the rear slider but I think it might have to do with setting the start of the film once the red window has been used to line up the first frame. I would welcome advice here from anyone who has a better knowledge of this camera. This system only works sporadically with my camera and when using the test film I relied on the red window for all frames.

As this is a folding camera, the lens is hidden behind a door that must be opened before using the camera. This is achieved with a button the the base. Pressing this causes the door to spring most of the way open - it might well have opened completely when new. When open, it locks the lens/shutter firmly in place. To close the lens door again, there is a chrome bar beneath the lens which must be firmly pressed to unlock the struts holding the door in place. 

As supplied new, this camera came with a hinged yellow filter ('Moment' filter) but this has long since broken off as is usual for cameras of this age. Also as a consequence of age, the bezel around the lens has come loose and fallen off (it was glued in place). This means I have no lens name or focal length information but I can gather this from information from the interweb. The lens has a serial number (located inside the camera on the rear of the lens). The pre-war versions of this camera were supplied with either a  three element Voigtar or four element Skopar lens. Of these, only the Skopar had a serial number so mine must be a Skopar lens. It is a 75 cm focal length lens (as was the Voigtar option) with a maximum aperture of f/3.5. The shortest marked focussing distance is 1 m, but the lens will move significantly further than this so the closest focus is going to be nearer to 0.7 m at a guess. The lens is not colour corrected (that would be a Color-Skopar) and is not coated but performed well regardless.

The shutter is a Compur shutter with a serial number of 3 751 602 - my records tell me that this dates from between 1935 and 1939. The lens serial number is 2 245 637 and this dates from between 1937 and 1942. (The range of dates is so vague because both Compur and Voigtlander lost most of their records in the destruction of WWII.) I have a piece of further dating information in that the slider on the front of the top plate was removed in 1939 so my camera must be from 1938 or early 1939.

The Compur shutter has a fastest speed of 1/300 seconds (later models had a Compur-Rapid shutter with a nominal 1/500 second speed) and apertures from f/3.5 to f/16. Both of these are very usable in 2015 with modern film. What is missing from this shutter is a delay timer and any flash connectors. For my test film, I used Kodak Portra 160 ISO film in sunny weather in April and shot most of the film at either 1/100 or 1/300 and f/11 or f/16. As is usual for this date, the shutter needs cocking before use. While the primary shutter release is on the shutter housing, the actual release is a lever that protrudes through the lens door. This is strictly left-handed in use, leaving your right hand to have a firm grasp of the camera.  Exacta did things the same way.

The base plate has three items. On the left is a lever with two functions. In the closed position, it prevents the back being opened and when swung out, it acts as a foot to allow the camera to be securely placed on a flat surface for longer exposures (together with a cable release, which the shutter is threaded for). There is no delay timer, so no selfies with this camera. In the centre of this lever is a tripod boss. This is a 3/8 inch Whitworth socket with a 1/4 inch Whitworth insert.  At the other end of the top plate is a depth of field calculator. You rotate the disc to set the distance you are focussing at to the pointer and then read off the depth of field against the aperture you are using.  The third item on the base plate is the release for the lens door.

In use, this is a simple, easy camera to use. The hardest part is the viewfinder which, as was normal in its day, is rather small and not usable while wearing glasses. With the left-hand shutter release, you can get a really good grip on the camera while actuating the shutter release with your left index finger. It is easy to cock the shutter with your right hand while still gripping the camera. 

The hardest part is reading the numbers on the shutter speed, aperture and focus scales. They are rather small for my ageing eyes.

As is common of Voigtländer cameras, there are Happy Snapper settings on the lens. These are marked by a small triangle and a small circle. If you set the focus to the triangle and the aperture to f/8 then all between 2.5 m and 5 m will be in focus (ideal for portraits) and if you set the focus to the small circle, and the aperture to f/8 then all between 5 m and infinity will be in focus (ideal for landscapes).

Even though the lens is neither colour corrected nor coated, it has performed well. There is no visible colour fringing (the panchromatic films in use in the 1930s would have needed well corrected lenses) nor is there any significant flare visible in my test pictures. Where I have shot Contra Jour, there is some slight evidence of flare but it is very minor. I have much worse lenses in my collection.

The film I used for my test was Kodak Portra 160, developed and scanned by Snappy Snaps in Lincoln.  Loading the film is easy - both spool holders are hinged. The camera takes either 120 or 620 film (only 120 is currently available). The dark bar along the right-hand edge of some frames is a scanning artefact, not the camera.









Shot into the light - some flare on the right-hand edge





Wednesday, 2 April 2014

Balda Jubilette

This camera dates from the very late 1930s - the model was introduced in 1938.  The camera is very similar to my Balda Baldina - the Jubilette was a cheaper option but it is still well made.  The Compur shutter has a serial number that should be able to date the camera but the serial number is anomalous - '0016596.  The '00 signifies the size of the shutter - size 00 - and the next five digits are the serial number.  Usually, the number on Compur shutters will have seven digits starting with a '4' or '5' ('4' for 1938, '5' for 1939 or the war years).  Occasionally, Compur shutters are known with five digit serial numbers.  One thought is that the serial number refers to a batch of shutters specially made for Balda rather than being a part of Compur's standard serial number system.

Balda Jubilette, folded
lens:  Baldar
focal length:  5 cm
apertures: f2.8 to f16
focus range: 0.5 m to infinity
lens fitting: fixed
shutter: Compur
speeds: 1, 1/2, 1/5, 1/10, 1/25, 1/50, 1/100, 1/300
flash: not available
film size: 35 mm

The camera is a folder of a fairly standard design. The lens standard is opened by a button on the top of the camera - the lens snaps forward with some vigour into its operating position. The struts holding the lens and lens board in position are nicely chrome plated and both the lens and the lens board are held rigid.
Balda Jubilette in the open position, seen from the top.

As the shutter is a Compur, the cocking lever moves clockwise (which is upwards when holding this camera for use). This is the opposite direction to Gauthier (Prontor) shutters which cock anti-clockwise. The shutter release button is on the lens board by the hinge.  On later versions of the Jubilette, this was moved to the camera body.  This is on the left of the the camera and needs to be operated with the left hand. I prefer this arrangement as it allows more space for my right hand to hold the camera steady. Several of my folders have the lens board hinged on the right which leaves my right hand being very cramped.

Camera from the front, ready to use.
The lens is a Baltar (it was de rigueur to end a lens name with the letters '-ar' - Nettar, Novar, Elmar, Radionar, Tessar, Skopar, Frontar and so on) which was made for Balda by one of the independent lens makers.  Balda did not make their own lenses and may have used more than one manufacturer to make their 'own label' lenses for them.

The controls on the body follow the Baldina layout. In the middle of the top is a very small reverse Galilean viewfinder - it is slightly to the left of centre. On the left of the top is the rewind key - this dates the camera to an early Jubilette as later versions had a rewind knob rather than key. On the right of the top is a frame counter. This counts up - so it tells you how many pictures you have taken and needs to be set to zero when you load a new film. This counter is covered with a yellow plastic disc (probably celluloid given the age of the camera). Beside the frame counter is a small brass button which releases the lens board.
Balda Jubilette in the open position, seen from the bottom
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Blog copyright by John Margetts, 2014
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On the base of the camera is the film advance knob - it is opposite the frame counter on the camera top i.e. on the right-hand end of the base.  Beside the film advance knob is a small button which must be pressed and released in order to free the advance mechanism inside the camera. This button is not sprung (at least not with my camera) and drops down under gravity.  This is important as it means that the film must be advanced with the camera held the right way up: the button dropping down again locks the advance mechanism when one frame has been advanced, if you hold the camera upside down (which makes turning the knob easier) you can advance right to the end of the film.  Note: examining photographs of Balda Jubilettes on Google has lead me to think my camera is missing a spring and a top to the button. The button that I have is threaded inside - indicating that a screw-on cap is missing and I suspect that a coil spring used to sit between the missing cap and the camera body. On the other end of the base is a 3/8 inch tripod boss. This has a large adaptor in it with my camera reducing the boss to 1/4 inch Whitworth which is the modern tripod standard.

Balda Jubilette - rear view
The back of the camera is a hinged door. this has the maker's name embossed in the leatherette (Balda plus a small logo) and in the centre of the back is an aluminium plate printed with a depth of field table (Tiefenschärfentabelle). The catch for the back is spring loaded and a little bit too small for comfortable use with my large fingers (but a big improvement on my Voigtlander Vito II which opens itself). Fastened to either end of the catch is a small carrying handle which is a bit too small for practical use. The front of the camera has the model name embossed in the leatherette (Jubilette). In the front of the lens board is a hinged peg which acts as a leg to stand the camera on when taking self-portraits.

The body of the camera is made of steel - demonstrated by the fact that it is starting to rust in [places. Inside, the film guides and covers over the mechanics are made from brass sheet painted a semi-matt black. The take-up spool is also painted brass. 

Focussing is smooth but has the disadvantage of having the distance pointer beneath the lens. This means that you have to turn the camera to set the focus - not a major problem on an entirely manual camera. Worse is the aperture scale - the white paint in the stamped figures has almost entirely gone making the scale very hard to read. Even worse is the position of of the adjusting pointer. This is very close to the lens board. Getting your finger in there to adjust the aperture means you have no chance of reading the scale. This fault lies with Deckel (the maker of Compur shutters) as they must have known their shutters would be used on folding cameras.

The body of this camera is identical to that of the earlier and more expensive Baldina. It is the details that are cheaper: the viewfinder has no parallax adjustment (although this was available as an extra), the lens is a Baltar  triplet, the frame counter is more functional (it lacks the Baldina's cover and ornate pointer), the exposed metal is painted black rather than being chrome plated. On the plus side, it has a body shutter release (although I think the Baldina also had one by 1938) which is much easier to use than the extended lever on the shutter housing that my 1935 Baldina has.


Jubilette in use.

In many ways, this is an archetypical 35mm folder. My Voigtlander Vito II is much the same size and has a similar too-small viewfinder. The biggest problem I have with cameras of this date is the viewfinder. I just cannot use them while wearing my glasses. Without my glasses I cannot see the image through the viewfinder although I sometimes think that having to concentrate on general outlines and shapes improves my composition - perhaps looking at the details gets in the way.

I have been using cameras with self-cocking shutters lately and I keep forgetting to cock the shutter - this does nothing for hitting that 'decisive moment'! I also press the door opening button on the right hand end of the top of the camera with my right fore finger instead of the shutter release button on the left. If I was using this camera exclusively, that would soon sort itself out.

I have had two problems with camera; both are probably a result of its age. The first is the shutter release mis-locating itself when the lens door opens.  This might have been down to my slightly depressing the shutter release button when opening the door. It can certainly be cured by closing the lens door and opening it again.

The second problem is the mechanism that ensures that you wind on exactly one frame - this is exactly eight sprocket holes. The shaft with the sprockets has eight sprockets on it, so advancing one frame needs the sprocket shaft to rotate exactly one revolution. When Balda designed this camera they had to work around patents owned by Leica, Zeiss Ikon and Kodak (and probably others) so they could not use an obvious and sensible system. The system that Balda designed involves pressing a button as soon as you start to advance the film and then immediately releasing the button and allowing it to 'pop-out' again while you continue to wind-on the film. On my particular camera it is necessary to give the camera a sharp slap to get the button to 'pop-out' again. I am not sure if the button is supposed to be sprung or if the camera relies on gravity - either way, it does not work without encouragement. This is not a major problem but it does slow things down a bit.  See note in blue above.

What has surprised me is that I have found the depth of field table on the back of the camera to be quite useful. The results of using it can be seen in the close-ups of flowers below (after next Wednesday).

In conclusion, this camera is still very usable. It has no bells or whistles and requires the user to think for himself but for me that is no bad thing.

Sample pictures:

First a few pictures that show how well this 76 year-old camera still works.  Focus is good (it is a scale focus camera so I did not really know this until I saw the pictures), little distortion (the arch in the second picture is bowed itself - it is not the lens), and colour rendition is fine even though the lens design pre-dates the use of colour film.  I am very pleased with these.
Lincoln Stonebow


Coloured primroses - distance for the focus was guessed together with a small aperture.
Bright Lincoln street - no flare

Barge on the Witham in Lincoln
Musical tight-rope walker in Lincoln city centre - a small amount of flare from the white wall.
Now a few pictures that are not so good.  First, this lens will not cope with photographing into the light. The lens is not coated at all (as was usual in 1938) and is showing significant flare.  As with using all old cameras, I need to follow my father's advice when I was ten or so - "always keep the sun behind you."


Sunny day in Lincoln.

This next picture shows what often happens when you use the first film in a very old camera.  Winding the film causes a small amount of static electricity on the film's surface.  This static electricity attracts any dirt lurking inside the camera, showing here as many black specks in the sky.
Lincolnshire field with a dirty sky.

This last picture shows how difficult it can be guessing close distances.  The thing to do here would be to carry a yard-stick and accurately measure the distance but that is not how I work.  I guessed and relied on the depth of field keeping everything in focus. It did not work here!
Berberis flowers.

Saturday, 30 November 2013

Balda Baldina


This is a very nice folding camera from 1930s Germany.  It is one of the first cameras to use Kodak's 35 film cassette - this was made soon after Leitz made the Leica (1925) and Zeiss Ikon the Contax (1932).  It follows Kodak's lead in producing a folding camera unlike Leitz and Zeiss Ikon who both made rigid 35mm cameras.  The camera is fairly small - it measures 120mm x 82mm x 35mm when closed and 120mm x 82mm x 85mm when open.  It is almost exactly the same size as Voigtlander's later Vito and Vito II cameras but a bit heavier. The covering seems to be leather rather than leatherette.  This is my second Balda camera - the other being a Baldessa from 1965.

lens: Schneider Radionar
focal length: 5 cm
apertures: 3.5, 4.5, 5.6, 8, 11, 16
focus range: 1 metre to infinity
lens fitting: fixed
shutter: compur leaf
speeds: 1, 1/2, 1/5, 1/10, 1/25, 1/50, 1/100, 1/300
flash: no connector
film size: 35mm
Balda Baldina - front view

This camera had been stored somewhere not particularly dry before I bought it and the finish showed the results. The leather was very dry and dull, much of the nickel-plated steel has rusted and the moving parts were all very stiff.  I attacked the leather with Bestbeloved's leather restorer and it is now a bit more subtle and has a nice sheen. Moving parts have had a drop of oil/naphtha mix (I mix 2 parts clock oil with one part naphtha to produce a freely running oil. This flows into hinges and axles easily - and when the naphtha evaporates the part is left with a very small amount of oil) and now move easily. I have yet to deal with the rust but will do so when I have finished the test film. I shall rub down just the rust and then treat it with Loctite Rust Remedy. This leaves a durable black finish which I shall leave as-is. The last thing to note, condition wise, is the presence of 'Zeiss Bumps'. Zeiss Ikon cameras are notorious for these and this is the first time I have seen them on a non-Zeiss Ikon camera. they are caused by the manufacturer using a different material for rivets than he used for the body. A chemical reaction will then be set up in the presence of damp resulting in the build-up of corrosion products between the metal of the body and the leather covering. These 'Zeiss Bumps' occur on the lens door and in the leather by the take-up spool.

Zeiss Ikon and Voigtlander used die-cast aluminium for their camera bodies which made for strength and lightness with the added advantage that they were corrosion resistant.  This camera seems to be made from steel.

The outside is a mixture of leather and nickel plating and where the nickel has worn, the camera is rather rusty. My Zeiss Ikon Nettars from the same decade were leatherette and paint and where the paint has worn you can see the aluminium.

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top view
Balda's use of steel and nickel plating would have made the camera cheaper to make.  I assume that this also meant that the camera was cheaper to buy but it would not have been cheap. With a Compur shutter, it would have been aimed at a serious amateur photographer.

The camera is quite well appointed.  It has a 'proper' viewfinder rather than the metal frames that Zeiss Ikon's Nettars and Ikontas had.  This is small (as was usual even on expensive cameras) and is a reverse Galilean finder (that means it is like a telescope backwards as it makes things small). This viewfinder has a remarkable addition - a parallax adjuster. When you have set the focus on the lens, you put the same distance setting on the viewfinder and the viewfinder moves up or down accordingly. For infinity, the viewfinder is fully up and as you dial in nearer distances, the viewfinder lowers itself. Apart from this camera, I have only ever seen this on expensive rangefinder cameras.

On the top plate along with the viewfinder is the film rewind key and the frame counter. This last is beneath a hinged cover and counts from zero to 36.  This is a count-up counter, the user setting the counter to zero when loading a film into the camera.

Beside the viewfinder is a small button. Pressing this will release the hinged lens cover and the lens will spring forward automatically - it does so with a reassuring 'snap'.  The shutter leaves are between the lens elements so focusing is only front-cell focusing (i.e. only the front piece of glass moves when focusing, not the whole lens. This causes a slight degradation of the image with close-up work. For landscapes it makes not a jot of difference).

base view
The film advance is on the bottom of this camera - possibly to circumvent other manufacturer's patents, certainly not because it makes it easier to use. Advancing the film is not as straightforward as turning the knob (no lever advances at this early date).  Leitz, Kodak and Zeiss Ikon had 35 mm cameras on the market when this camera was designed and each had patented every aspect of camera design they could.  They also pursued patent infringement vigorously. The outcome of this is that manufacturers trying to bring new models to market had to find workarounds to avoid being sued. In this case, the film advance is locked until you press a button on the base of the camera. This must be released as soon as you start turning the film advance knob or you will advance more than one frame. To make this as hard as possible, you first have to push in the safety lever, then press the small button and then turn the advance knob.

Also on the bottom of the camera is a tripod boss.  This is the original 3/8 Whitworth thread rather than the more modern 1/4 Whitworth.  This is to one end of the camera - it seems to have taken camera manufacturers a long time to work out the point of balance of a camera.

Balda Baldina - folded
Inside is pretty much as you would expect even from a modern 35 mm camera - a sign that this layout was well designed from the start and not patented.

The hinged back has effective light baffles and so there is no need for foam light seals - nothing to go gooey and messy with age and nothing to start leaking light. In the centre of the back is the pressure plate to keep the film flat against the film gate. To one end is a nickel-plated spring to keep the film in place on the sprockets. Loading film is easy. There is a spring on the take-up spool under which the end of the film goes. No particular shape of film leader is required but the modern standard leader works fine.

When open, the door hinges on the left, leaving plenty of room for the right hand to have a firm hold. Many folding cameras hinge on the right leaving a restricted space for gripping.  Voigtlander's Perkeo and Vito cameras hinge on the right.

When holding the camera for use, the shutter cocking lever  must be moved upwards (this is a Compur shutter, a Gauthier shutter (Prontor) would need the lever moving downwards). The shutter release provided by Compur is hidden by the folding struts and cannot be reached. To overcome this, Balda have added an angled extension which can be reached by the middle finger of the right hand. There is also a socket for a standard cable release.
position of extension lever


Adjusting the shutter speed is easy - this is a rim-set shutter and you turn the outer ring until the required speed is aligned with the index mark. Altering the aperture is not so easy. The control is close to the door and between the folding struts. This is quite do-able but requires looking at the camera from the front.

I have finished the test film which raised a couple of things.  Firstly, firing the shutter. The extension lever that Balda have added to the Compur shutter release travels a long way before it fires the shutter. I found this rather awkward and difficult to hold the camera steady while doing so. Secondly, rewinding the film.  I have no instruction book for this camera and I have to work things out for myself. I assumed that the button that released the film advance mechanism would also release the rewind mechanism. Wrong! My attempt to rewind the film resulted in me pulling all the film out of the cassette. This meant a trip to Snappy Snaps to ask them to remove the film in their darkroom which they did. I now know that to rewind the film you have to lift the film advance knob and leave that other button alone. Oh well - this is all a part of the fun of collecting old cameras. Tomorrow, I shall collect the developed film and post a selection here.

OK. The test film is back - and none the worse for me trying to rewind it the wrong way - kudos to the staff at Snappy Snaps.  I am impressed with this camera. It was made in 1935 (plus or minus a month or two) and has worked flawlessly. The lens shows no sign of having been coated, which would have been very unusual in 1935, but is not particularly susceptible to flare. There is some flare visible in some of the pictures, but I have a habit of shooting into the light which would have been virtually unheard of in 1935 for the very reason that is causes flare.  The lens focuses well and produces high contrast colour pictures. The lens will have been colour-corrected to some extent as that is necessary for using panchromatic black-and-white film and the lens clearly has no problems with modern colour films.

There are marks on some of the negatives - basically, there are scratches which show up on the prints as black marks. I am putting this down to the damage caused when I attempted to rewind the film. It only affects a few of the negatives, most of them being fine.

The pictures:
Shooting to the south on a sunny day (that is, into the sun), hence the flare.

Shooting to the south again, but on a dull day - a small amount of flare.


Shooting to the north on a misty day. No flare but some mist visible in the upper parts of the picture.


Shooting to the south on a sunny morning - no flare as such.


Shooting to the east on a sunny day.


Shooting in a heavily shaded alley - good contrast and colours.

Friday, 28 June 2013

Ikonta 520

This is a medium format camera (i.e. takes 120 film) from Zeiss Ikon.  It is a half-frame camera - 6 x 4.5 cm negative - which is half of a standard 120 frame of 6 x 9 cm. The body serial  number tells me it was made in 1932.

Ikonta 520, front view
lens: Novar
focal length:  75mm
apertures: f/6.3 to f/32
focus range: 4'6" to infinity (that is the scale, actually about 4 feet)
lens fitting: fixed
shutter: Derval
speeds: 1/25, 1/50, 1/100, B, T
flash: n/a
film size: 120


The body is made from cast aluminium.  This body casting is shared between the Ikonta 520, Bob 510 and Nettar 515. It is quite hard to understand why Zeiss Ikon shared the body between three different camera lines instead of calling them all Ikonta (the oldest name) seeing as Bob, Ikonta and Nettar all come with a range of lenses and shutters and can be considered to be one range in effect if not in name.

So, this Ikonta.  It is an Ikonta 520 - more specifically, a 520E. The other variants are
520IT with a f4.5 Novar and a Telma shutter,
520F with a F3.5 Novar and a Compur Rapid shutter and
520L with a f3.5 Tessar and Compur Rapid shutter.

The lens is a Novar which is a triplet and performs surprisingly well once stopped down to f/8 or smaller.  Ikontas were also available with Tessars at a higher price and wider aperture Novars.  The Novar on this camera is quite a slow lens with a maximum aperture of f/6.3.  The focussing is front cell only, rather than the whole lens moving (giving not quite so good image quality) and the focussing scale is in feet indicating that the camera is an official import into the UK.

The shutter is an everset Derval (everset means it does not need cocking before firing as a Klio or Compur would).  This is a fairly crude (and so cheap) shutter with two blades only and only offers three speeds: 1/25, 1/50 and 1/100.  With a slow lens like this camera has, faster shutter speeds would have been superfluous, particularly with the slow, by modern standards, films available in the 1930s.

Detail of rim-set shutter adjuster on Derval shutter
The shutter is a dial set shutter which means that the speed adjustment is by a dial set above the shutter housing.  More modern shutters have a rim set adjuster which is a ring around the shutter housing.  This shutter does not have a V (=Vorlaufwerk) setting for delayed action and as is usual with cameras made before the late 1940s, there is no flash connection or synchronisation.

Ikonta 520, side view
As I mentioned, the maximum aperture is rather small at f/6.3 but the minimum aperture is surprisingly small - f/32 - so the range of exposures possible is still respectably large.

A standard photograph with this camera (as with the Bob 510 and Nettar 515) is in portrait format and in this orientation the shutter release is underneath the camera and is uncomfortable to use.  To take landscape pictures, the camera must be used on its side and the shutter release is on the side and easy to use.

The viewfinder is the cheap two frame style of viewfinder - a Newtonian finder.

This was an expensive camera in its day - according to Tubbs (Zeiss Ikon Cameras 1926 -39, published by Hove Camera Foto Books), it cost £4/10/0 new in the early 1930s and advertised by Zeiss Ikon in the British Journal Almanac for 1936 at £4/17/6.  That is £4.50 in new money but a week's wages for a working man would have been around £1/10/0 or £1.50. So this camera cost around a months income for a working man which is around £1,000 in today's money.

19/07/20123:  I have now finished my test film for this camera and the results are not good.  The lens is susceptible to flare (as I would expect on a lens from 1930 - coating of lenses had not been invented yet) and some of the flare is very strange, suggesting something other than ordinary flare - a glass defect, perhaps.

Blues festival in Lincoln Arboretum

One of our many buskers in Lincoln - very young but quite accomplished

Lincoln Corn Exchange in the Cornhill

Comparison between Ikonta 520, Bob 510 and Nettar 515:


These three cameras from Zeiss Ikon share the same aluminium casting for their bodies.  This makes them very similar cameras.  They all take 120 film and they all produce half-frame negatives of 6 x 4.5 cm.  The details, however, are different.  I shall give the differences between them one model at a time, starting with the oldest.

Ikonta 520
This camera was produced from 1931 and is using the old fashioned dial set shutter - the disc at the top with the word 'Derval' on it..  The adjuster for the aperture is at the bottom of the shutter housing and requires the user to turn the camera around so that the scale can be seen.  The lens is a Novar triplet lens.  There is also a leather hand strap on this camera and the catch to close the back is solid.


Bob 510
Next is the Bob 510 (sold in the UK as a Nettar 510).  This is a slightly later camera first produced in 1934 and has a more modern rim set shutter - the dial is now replaced with a ring around the shutter housing.  Shutter speeds and apertures are the same, but the aperture adjuster is now on top of the shutter housing, behind the speed selector.  This means that the user can adjust the aperture with the camera pointing at the subject.  Perhaps not a major advance  but will have been less frustrating to use.  The lens is now a Nettar rather than the Novar - still a triplet but a different design.  There is no hand strap on this camera and the catch for the back is less secure than on the Ikonta

Nettar 515
Last is the Nettar 515.  This is later again, 1937, and also has the rim set shutter.  The shutter is now a Klio (on non-Zeiss Ikon cameras known as Prontor) with more shutter speeds (up to 1/175 and a few slow speeds).  The aperture adjuster is still on top, behind the speed adjuster, and there is now a delay setting lever below the shutter housing.  As with the Ikonta, the lens is a Novar triplet.  This shutter requires cocking before use  and there is an ancillary shutter release button on the camera body.  There is also provision to fit an optional brilliant finder on this camera although mine does not have this.  This model also has no hand strap and it has the same catch as the Bob 510


All three together, oldest on the left, newest on the right.

Monday, 10 June 2013

Ihagee Exakta Varex IIb

This is one of Ihagee's 'serious' cameras.  It is very similar to the two Exas I already own but has more facilities and is built to a higher standard.  It is the usual Exakta/Exa rhomboidal shape.  On my two Exa cameras, the back and base come away as one to allow film loading.  The Varex IIb is more traditional with a hinged back.  This back, however, is also removable if you want.

lens: none
focal length:  n/a
apertures: n/a
focus range: n/a
lens fitting: Exakta double bayonet
shutter: horizontal cloth focal plane
speeds: 12 seconds to 1/1000 seconds
flash: three PC connectors, no accessory shoe
film size:  35mm
Exakta Varex IIb with lens and viewfinder added


The camera is heavy, weighing 581g without lens or viewfinder.  It is left-handed.  The film advance is on the left as is the shutter release and one of the two (yes, two) shutter speed selectors.

This camera came without a lens and has both (yes, both) the Exakta bayonet mounts so this camera will take any Exakta fit lens.  Strictly, this is a Varex IIa type bayonet as it has slots at the inner bayonet flanges (not sure why).
Exakta Varex IIb as I bought it

The reason for having two bayonet mounts on one camera is that the original mount restricted the width of attached lenses.  When Ihagee developed telephoto lenses, there was too much vignetting of the image to be usable. The new bayonet mount has a wider diameter and so allows wider lenses to be fitted.  (note: I am using the word 'wider' in a mechanical sense, not in its other, optical, sense.)

The shutter release is beside the lens mount to allow the use of automatic lenses.  In the Exakta system, the lens has a secondary shutter release which fits over the camera's shutter release.  When you press the lens' secondary release, the lens diaphragm closes and the primary release is pressed, actuating the shutter.

The shutter is a horizontal cloth focal plane shutter.  On this particular specimen, the shutter is faulty.  The mechanism sounds dry (there is a faint but clear squeal when the shutter actuates), the second curtain is significantly wrinkled and, at the slower speeds, the second curtain doesn't quite close.  At 1/1000, it works fine.

This is the only camera I have seen that has two speed selectors.  On the left is a small conventional selector that covers speeds from 1/30 to 1/1000 plus B and T.  This works in a fairly conventional manner - lift, turn to the required speed and release.


slow speed selector
fast speed selector
On the right of the camera is another speed selector which covers speeds from 1/8 to 12 seconds.  These figures are in black.  This selector also provides a delay of up to six seconds (using the figures in red).  When using the delay, you also get mirror lock up so reduced vibration can be achieved when using the macro attachment - a facility that no other of my SLRs has until my Canon EOS of 1995.  In the centre of the slow speed selector there is a film speed reminder dial.  As this camera is totally manual, this dial does nothing except remind you what film you have loaded into the camera.

Another quirky thing about Exakta cameras is the film advance lever.  This moves through over 300 degrees which is more than you can do in one motion.  I am actually finding this ok but I start the motion with my left thumb for the first half of the travel and then my left index finger takes over.  Around the film advance lever there is a frame counter.  This counts up from zero - so tells you how many frames you have shot.  It is also quirky as the frame count changes when you press the shutter release rather than when you advance the film.


Exakta cameras have exchangeable viewfinders.  When I bought this camera, there was no viewfinder with it, just a rectangular hole in the top plate.  I have two viewfinders for my Exa cameras and these fit this camera so I have a choice of an eye-level finder and a waist level finder.

Hole in the top plate for fitting the viewfinder
Moving to the front of the camera, there is little to note.  As I have mentioned, there is a double bayonet mount and a shutter release.  There are also three (yes, three) PC connectors for a flash gun.  Ihagee seem to have tried to be as idiosyncratic as possible with their cameras.  Rather than go down the route used by Prontor and Compur (hence PC) and have a switch to select between bulb and electronic flash, Ihagee have provided separate connectors , one for electronic flash and two for flash bulbs.

In fact, the three PC connectors can be used in various ways to allow different shutter speeds.  Using the X connector and a shutter speed of 1/60 allows use of electronic flash.  Using the FP (Focal Plane) connector allows shutter speeds up to 1/1000 seconds which is an incredibly fast shutter speed for flash.  The manual gives guide numbers for different bulbs and shutter speeds - the fast speeds being achieved because the flashbulbs suitable for the FP connector have a flash duration of around 1/40 second and so are burning throughout the expossure.  The F (Fast) connector allows small fast flashbulbs to be used with a shutter speed of 1/30.  The X (Electronic) connector can also be used with a shutter speed of 1/8 with any flashbulb.  I am not sure how much advantage is given to the photographer with the above choices, but I almost never use flash and have never used flashbulbs, so I am likely to be missing the point.

Underneath the camera are four knobs.  The smallest of these unscrews to allow the use of an internal knife to cut the film when an empty cassette is used in place of the take-up spool.  Next to this is the rewind knob with a small folding crank.  At the other end of the camera is a knob which is pulled away from the camera to release the catch on the back.  Between these two knobs is the tripod boss which is the standard 1/4 Whitworth tread.
Base of camera

The outside of the back has two small chrome rectangles and one large chrome rectangle.  These are the fitting for internal components, the small rectangles help to keep the film flat and the large rectangle is part of the fitting of the pressure plate.


Rear of camera

The camera in use:

I am trying out this camera (despite having a faulty shutter) with a roll of out-of-date and no longer made film - Kodak Plus X.  I have never used this film before but it had a very good reputation.  This film is monochrome and is rated at 125 ASA/22 DIN.  I don't know why but it seemed appropriate to try this camera with a vintage monochrome film.

The camera set-up I am using is the Varex IIb body, Carl Zeiss Jena Tessar (50mm and f2.8) and a waist-level viewfinder with a plain focussing screen.  [This lens should not be confused with a Carl Zeiss Opton Tessar from West Germany.  The Carl Zeiss Jena lens is the real thing.]

There are many options available for this camera for both lens and finder.  I have the Carl Zeiss Jena Tessar and two Meyer-Optik Domiplan lenses available and the waist-level finder and a pentaprism eye-level finder.  I am enjoying the waist-level finder but must admit to struggling a bit with the reverse action when I move the camera.

First aspect of the waist-level finder is the fact that the image is reversed left-to-right.  If you want to move the image to the right, you need to move the camera to the left.

It is also easy to get verticals at an angle.  Again, you have to move the camera the 'wrong' way to correct this.

This finder has a plain focussing screen which makes focussing a bit harder.  For me, this is not a significant problem as I usually use hyperfocal focussing.  On the rare occasions when I rely on critical focussing, there is a hinged magnifier available which is more than I shall ever need.  If not, other focussing screens are available with micro-prisms and split-image centres.

I have been carrying this camera around for about an hour this afternoon and I can confirm that this is a heavy camera.  There are strap lugs with split rings available to connect a strap.  A nice touch is the presence of triangular leather patches behind the split rings to stop the rings and strap ends from scratching the camera body.  While I have a number of straps available, I have not fitted one to this camera.

Contrary to my usual practice, I am using a shutter-priority exposure system, adjusting the aperture to vary the exposure.  The reason I am doing this is because this ('faulty') shutter seems to perform best at 1/125 seconds so I am keeping it set at this speed.

What I am finding, which delights me, is that I am seeing the image in the wauist-level finder as a picture rather than as a view.  This is making composition not so much easier (see my comments about image reversal) but clearer and more precise.  So far I much prefer it.

I am also finding the left-hand operation surprisingly easy.  I am no longer pressing the slow speed selector hoping to fire the shutter.  The film advance with its 300 degree travel is also surprisingly easy to use left handed.

As I have already said, I usually use hyperfocal focussing but if I did not I think I would find right-handed focussing cumbersome.

My first film being completed, I need to develop the film and scan it.  Then I shall post some sample pictures here.

Film is now developed and scanned.  Here are some example pictures, clearly showing the problem with the shutter is one of them.  The rest are not too bad (if you ignore my poor scanning ability!).