Ikonta 520 novar

Friday, June 28, 2013

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.


Ikonta 520, front view
lens: Novar
focal length:  75mm
apertures: f6.3 to f32
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.  The lens is a Novar which is a triplet and performs surprisingly well once stopped down to f8 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 f6.3.  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.

As I mentioned, the maximum aperture is rather small at f6.3 but the minimum aperture is surprisingly small - f32 - 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.

Exa 500 exakta

Tuesday, June 25, 2013

This is my fourth Ihagee camera and my third Exa.  The original Exa was a cut-down low-cost version of the Exakta and then the Exa line developed in its own right.

The Exa 500 is the end of the line for Exa cameras  and was developed after Ihagee was subsumed into VEB Pentacon, the state camera manufacturer.  The lineage from the Exakta is apparent in the shape.  This camera still has the rhomboidal shape introduced with the original 127 format Exakta in 1933.  It also still has the shutter release on the left, although the film advance is now on the right.  Another change is the fixed pentaprism viewfinder, so I cannot use the delightful waist level finder with this camera.

The immediate predecessor of this camera was the Exa II.  The body of the Exa IIa and this Exa 500 are identical although there are some internal differences.

The Exa 500 has a vertical cloth focal plane shutter which travels from bottom to top.  This shutter provides speeds from 1/2 to 1/500 seconds plus B.  This means it is twice as fast as the Exa II.  There are two flash settings: 1/60 for electronic flash and 1/15 for flash bulbs. This camera follows the Exa standard and flash synch is achieved by aligning a dot on the speed dial with either a zigzag icon or a bulb icon.  On the front of the body is a single PC connector.

This camera also has a shutter lock beside the viewfinder - cover the red dot to shoot, uncover to store the camera.  The only other real change between the Exa II and the Exa 500 is that the Exa 500 has an instant return mirror so the viewfinder does not go blank when you fire a shot.

Like other Exakta/Exa cameras, the film take-up spool is removable and can be replaced with an empty film cassette.  Doing this obviates the need to rewind the film but it does cost you one frame of film.  There is no internal knife to cut the film like the Exaktas have so this must be done after opening the back.  The only real advantage of this is the possibility of developing half a roll of film but I cannot imaging that many people have ever bothered.

The film advance is on the right as is normal in non-Ihagee cameras.  It has quite a short stroke of just over 90 degrees (compared to the Exakta Varex II where the advance travels about 300 degrees).

The back of these cameras come away from the camera body in one piece with the base.  This is supposed to make it easier to load film but I find this method harder.

Exa cameras were supplied with a variety of lenses depending on how much the customer wanted to pay.  This camera has a Meyer-Optik Domiplan.  this is a triplet design so not as good as the Tessar option, but the Domiplan performs well enough when stopped down.  The lens is a semi-automatic lens - the diaphragm closes when the shutter release is pressed but stays open for composition and focussing.

The Domiplan achieves this automation by a hinged lug that protrudes over the shutter release - the photographer presses this lug which in turn presses the shutter release.

This mechanism in the Domiplan lens has a weak link that is prone to seizing but this particular lens performs ok.  My other Domiplan lens needed the mechanism cleaning with naptha before it would work satisfactorily.

This camera would also work with my Exa fit Carl Zeiss Jena Tessar (we need to specify Carl Zeiss Jena in contradiction to Carl Zeiss Opton, the new (at the time) Carl Zeiss operation in West Germany.  East German Carl Zeiss Jena lenses are generally better than Carl Zeiss Opton lenses).

In use, this camera is much as you would expect.  The shutter speed selector is rather loose and I was not sure I was actually selecting any speed, but I tried exposures at various shutter speeds and they have all come out well exposed so the shutter speed selector must be doing its job.

There is a red flag in the viewfinder to tell you that you need to advance the film before taking the next shot.  in previous Exa cameras this was not necessary as the mirror would only return to the viewing position when you had wound on.  In this model, the mirror is an instant return mirror and it would seem that the makers thought users might get confused with such sophistication.

Exakta Varex IIb heavy

Monday, June 10, 2013

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.


Exakta Varex IIb as I bought it
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

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).

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.

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 there 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 pull 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.

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.

Voigtlander Vito I prontor

Tuesday, May 14, 2013



Vito - lens door open
I have used as a title for this article 'Vito I' but the camera is actually the Vito - Voigtlander were not aware of the forthcoming Vito range at this point.  I already have an article on the Vito II here and much in that article applies here as well.  The two cameras are very similar as you might expect.  The lens serial number says the lens was made in 1945 which is also the probable date of manufacture - one of the first cameras to be made in war-ravished Germany.


Vito top view

lens: Skopar
focal length: 50mm
apertures: 3.5 to 16
focus range: 1 metre to infinity
lens fitting: fixed
shutter: Prontor II
speeds:  1/5 to 1/200
flash: synchronised for bulbs
film size:  35mm

The camera is a folder and nicely compact when closed.  It measures 120mm by 70mm by 40mm closed and 120mm by 70mm by 80mm when open.  Closed, it nicely fits in a trouser or jacket pocket.  The only distinguishing mark on the closed camera is an ornate 'V' on the lens door and a fairly indistinct 'Voigtlander' is embossed on the leatherette on the back together with the model name 'Vito'.  There is also the country of origin embossed on the back which is 'Germany'.  As Germany is the English name for the country this indicates that it is an official import,  Strangely, for an official import, the focussing scale is in metres rather than feet, suggesting that Voigtlander were not fully geared up for export in 1945.


The top plate is very uncluttered.  There is a knurled ring at either end.  The right-hand ring is the film advance and the left-hand ring the rewind.  In the centre of the top plate is a very small, reverse Galilean viewfinder.  The eyepiece is only 5mm by 2.5mm.  The image seen is roughly 0.5 times life size.  This is very small compared to more modern viewfinders but it is more than adequate.  There is also a frame counter which counts up from one.  There is no accessory shoe (flash shoe) although one was available as an extra and fitted over the viewfinder.

On the rear of the top plate is a lever.  In the normal position (down) the film advance will only advance one frame.  When raised, the film can be advanced as far as you want and can be rewound.  The toothed wheel which is exposed by raising the this lever can be used to set the frame number to one.

Then underside of the camera contains three items.  Close to the centre is a 3/8 Whitworth tripod boss.  A 1/4 Whitworth insert would ave been available for the more usual tripod size.  There is also a button to release the lens door.  This is spring loaded and partially opens the door.  When new, the spring may well have fully opened the door but this camera is nearly seventy years old.

The third item on the base is two 'feet'.  These are little more than pins.  A third foot is on the lens door giving three feet altogether which allow the camera to sit stably on a flat surface.  this is primarily intended to allow group portraits using the self-timer.

When the door is opened, the lens comes forward on its bellows and locks in place.  The shutter release is on the top edge of the door together with a threaded socket for a standard cable release.


The lens is a Skopar f3.5, 50mm lens.  This is the original version of the famous Color-Skopar and is not calculated for colour film.  However, it is intended for panchromatic film so should perform well with colour film.  See the test pictures below for details.  This lens focusses from one metre to infinity and has Voigtlander's usual two Happy Snapper settings - a circle for the hyperfocal distance at f5.6 (approximately five metres to infinity at f5.6 or 2.5 metres to infinity at f16) and a triangle which gives a focus range of 2.5 metres to five metres at f5.6 (ideal for groups).  This lens has no blue/purple tinge and so cannot have been coated as was normal post-WWII and so will be liable to flare.

The shutter is a Prontor II (which is the same as a Klio on a Zeiss Ikon camera) which is a pre-war design and was soon to be updated to the Prontor S.  This Prontor II has a PC connector and so must be synchronised for flash - I would suspect for fast flash bulbs (F: sync) but there is no indication of this on the shutter housing (my Vito II has a Pronto shutter and this is specifically marked F:).  Shutter speeds are 1/5, 1/10, 1/25, 1/50, 1/100 and 1/200 which is more than adequate.  The bezel of the shutter housing bears the shutter name - Prontor II - Gauthier's maker logo and Voigtlander's script name.

There is a self-timer lever which we are always told not to use on old cameras to prevent damage to the shutter.  It barely works on this camera, taking 16 seconds to actuate the shutter and then needing a little help from my finger over the last two or three seconds.

This shutter needs cocking before use - the cocking lever moves from left to right and up to cock the shutter.

Apertures available are f3.5 to f16.  As there are no click-stops, you can set an intermediate value if you want to.  The only other item of note on the shutter assembly is a stellate lever.  I am not entirely sure what this is for but I suspect it was to do with the hinged yellow filter that the early Vitos were fitted with.  The shutter bezel has three screws in it that are also part of the filter assembly.  When production had used up the store of pre-war parts, the bezel no longer had these three screws.

Inside is where this camera gets interesting.  The design dates from 1939 and the camera was intended to use unperforated 35mm film.  As the film was unperforated, there are no sprockets in the camera.  Instead, the camera judges the film with a feeler roller as in an up-market 120 camera.  As the film came on a spool with backing paper (again, as with 120 film) there are springs fitted to the film chambers to keep the film tight on the spools.  When production restarted in 1945, Voigtlander decided to modify the camera for modern perforated 35mm film (135 format).  the only real change is that the film gate (the rectangular opening that lets the light hit the film in the correct place) is reduced to 24mm by 36mm (originally it had been 30mm by 40mm).

The film take up chamber will take the standard spool from a 35mm cassette as a take-up spool or an empty cassette can be fitted which means that when the film is finished you can open the back and cut the film with the exposed part already in a cassette.

Comet 44 hence the

Wednesday, May 1, 2013

Comet 44, front view
This is a later development of the Comet line.  I also have a Comet S which is a half-frame camera.  This Comet is a full-frame camera.  It is a well designed and well made cheap camera.  In that respect it compares well with the Japanese Meisupii and Halina ranges which are not that well made.

This is a 127 camera which takes square pictures 4 x 4 cm (hence the '44' in the name?).
The main body is made from cast aluminium alloy with an anodised finish.  Internally, there are some aluminium plates as well.  The back, which is also aluminium, comes away entirely to load the film.

The lens is marked as Bencini Acromatic 5.5 cm, f8.  The lens is actually a simple single meniscus lens.  In this camera, the lens is loose because someone has attempted to dismantle the camera.  Unfortunately, it is not possible to tighten the lens without a special tool which I do not have.

The shutter is a simple shutter with two speeds - 1/100 and 1/50 - and includes flash synchronisation.  The flash sync. mechanism is rather crude and is unlikely to work with electronic flash.

On the top plate on the left is the spool release to allow the insertion of a new roll of film - this is pulled up while putting the film in or taking the used spool out.  It is spring loaded to keep the film securely in place.
Comet 44, top view

Next to the spool release is an accessory shoe with a large chrome spring.  Next to this is the shutter release.  This is nicely placed for the index finger.  The last item on the top plate is a knurled chrome knob to advance the film.  this also pulls up to allow the insertion of an empty spool and removal of the finished film.

In the centre of the top is a bright yellow viewfinder.  that is, it looks yellow until you use it but looking through it, it is purple.  As is usual with roll film cameras, there is a red window on the back to allow you to see the frame numbers when you are winding the film on.

Meisupii J review

Friday, April 26, 2013

Meisupii J
This is a small, cheap Japanese camera dating from 1951.  The camera is 104 x 70 x 59 mm and weighs 190g - this is quite light and is due to the aluminium alloy construction.  the only part that is not aluminium is the shutter which is brass.  The basic physical design is the one common to many cameras of the period and is loosely (very loosely) based on the Leica, the sine qua non of camera design of the time.  The following three photographs show the general similarity in outline and layout.
The Meisupii J has a number of knurled knobs and rings giving the impression that things can be adjusted.  of then two knobs on the top plate, only one turns - the film advance.  The two knurled knobs on the base plate do not turn and the two knurled rings on the lens/shutter housing also do not turn.

There are adjustments, however.  There are two shutter speeds - I and B.  I is Instantaneous and B is Bulb.  Instantaneous is around 1/50 seconds and B, as usual, leaves teh shutter open while the release is depressed.  the release button almost gives the impression that it is threaded for a cable release but it is not.

Also adjustable is the aperture with two f-stops - f8 and f11.  These are Waterhouse stops - holes in a moveable metal plate - rather than an iris diaphragm.  These holes have clearly been punched rather than drilled as the f8 stop is not quite circular.

The lens is a meniscus lens as far as I can see and does not appear to be coated..  The lens fascia is inscribed 'Meisupii 35' which suggests a 35mm lens which is slightly wide angled for 35mm film.

This camera takes Bolta film which is unperforated 35mm film wound onto a spool with backing paper like 120 film.  This was introduced in Germany in 1936 at as time when 35mm film was becoming popular but was not yet readily available in pre-filled cassettes.  Bolta format film was introduced into Japan in the late 1930s as Boltax film and was used until the late 1950s.

As with 120 film, the frame positions are indicated on the backing paper with numbers viewed through a window on the camera back.  Strangely, this window is coloured green rather than the usual red although with the introduction of panchromatic film (which was the usual film by 1951) the colour of the window is immaterial.


Praktica TL3 mayer

Friday, April 12, 2013

Praktica TL3, front view
lens: Meyer-Optik G?rlitz Domiplan
focal length:  50 mm
apertures:  f2.8 to f22
focus range: 0.75m to infinity
lens fitting: 42 mm thread
shutter: metal vertical focal plane
speeds: to 1/1000
flash: bulb or electronic
film size: 35 mm


This is a standard looking camera from between 1984 and 1986.  It is a fairly heavy (very heavy by modern standards) and large enough to hold in two hands.  The ergonomics - the layout of the controls - is, again, normal for the time.

This camera takes 42mm thread lenses (also known as Pentax thread) which means that lenses are readily available.  It is specifically designed to work with automatic lenses (those with a pin to stop down the lens) - when the shutter is fired, a cam presses the pin and closes the aperture.  This is not essential, though, and the camera works fine with fully manual lenses.  I have shot half my test film with my Soviet Helios-44 lens from my Zenit E.  So long as you remember to manually stop the lens down for both metering and picture taking there is no problem.

This is a fully mechanical camera and no battery is required for its operation.  It does, however, use a battery for the metering system.  This should be a mercury battery giving 1.3 volts but these are no longer available.  I am using an alkaline 1.5 volt alternative which 'should' cause the camera to underexpose but I have checked the results of the built-in meter with my Ikophot meter and they are in complete agreement.

This is an SLR camera and so both metering and focussing are conducted through the lens (known as TTL, for the uninitiated).  With an automatic lens fitted, metering is done by selecting either the shutter speed or aperture, holding down the metering lever beside the shutter release and the adjusting either the aperture or the shutter speed until the needle in the viewfinder is as close to the circle as possible (i.e. it is a match-needle meter).  With the supplied lens, this is within 1/2 stop of 'perfect', with the Helios-44 it is to the nearest whole stop.The meter can be set to a range of film speeds from 12 ASA/12 DIN to 1600 ASA/33 DIN.  It is settable in 1 DIN stages which equates to 1/3 stop.

top and rear view
The shutter is a vertical metal focal plane shutter.  It has a good range of speeds - up to 1/1000 seconds which is plenty fast enough for my photography.  There are two flash synchronisation speeds: 1/30 for bulbs and a separate position on the speed selector dial for electronic flash, which the manual says is 'about 1/125.  Both bulbs and electronic flash can synchronise at slower speeds.

Electronic flash can synchronise at 1/125 seconds (quite a high sync speed for the time) because this camera has a vertical shutter with three metal blades.  In the manual, Praktica tout this as a modern invention but Zeiss Ikon used a vertical metal shutter in the Contax I in 1932

The shutter release is not my favourite part of this camera.  It is placed on the front of the camera rather than on the top plate which I always find awkward.  Secondly, the shutter release has to be pressed flush with the housing.  this might be just my camera but a little less travel would be good. The film winder is a lever which travels through 180 degrees but the first 20 or so degrees do nothing.

On top of the prism is an accessory shoe which has 'hot' contacts for a flash gun.  This is the only way of connecting a flash gun as there is no PC connector.  The only other control on the top plate is the film rewind crank.  As was normal for the time, this is an annoyingly small folding crank.  in the early 1960s several manufacturers introduced a large rewind crank on the base plate and it is a pity this did not become the standard.

Pressing the shutter release, you experience a significant resistance and then there is a loud and tactile 'clunk'.  I had thought my Zenit E had a heavy action but this is much worse.  I am hoping that most of this is the mirror slapping up and not the shutter.

The supplied lens is a Meyer Optik Domiplan f2.8 50mm lens.  this is a triplet lens and a cheap option.  I have yet to see the results of this lens but I have a 50mm Domiplan on my Exa IIa and that lens is fine.  Available apertures are from f2.8 to f22 in 1/2 stop clicks.

Focussing is from 0.75m to infinity and the focussing scale is in feet as well as metres.  The action is fairly stiff and changing the focus from near to far will result in the lens unscrewing rather than focussing.  Hopefully, this is lack of use and will sort itself out with use rather than being down to physical damage.