Help to identify lens

[beefheart]

Please! Help to identify lens(m42 mount) which i bought with some other stuff not long ago. It has no desighnation of manufactor, focal length and so on. F-number is 2,6; it has 14 aperture blades; focal length -- near 80-85mm. Maybe its something from east-german manufactors?
Thanks for responses beforehand.

 

[beefheart]

Please! Help to identify lens(m42 mount) which i bought with some other stuff not long ago. It has no desighnation of manufactor, focal length andso on. F-number is 2,6; it has 14 aperture blades; focal length -- near 80-85mm. Maybe its something from east-german manufactors?
Thanks for responses beforehand.

 

[grahamp]

No focus scale? Or is that just how the pictures were done? Looks like a pre-set (twin aperture rings, and no obvious FAD pin).

 

[Ian Grant]

Looks like a prototype to me, they do surface unexpectedly.

Ian

 

[beefheart]

No focus scale? Or is that just how the pictures were done? Looks like a pre-set (twin aperture rings, and no obvious FAD pin).

No focus scale!

 

[beefheart]

Focus ring (inter alia) turns at more than 360 deg.

 

[mweintraub]

Are you sure it's an m42? looks like LTM

 

[Ian Grant]

Lets put it another way, I have a Ross 108mm f3.8 Ensar lens (un-coates) in an Epsilon shutter. That lens was never marketed/sold but it was made as a prototype and someone hung on to it, then who knows they died, no-one else knows the histoty and I get it cheap at a camera fair.

The truth is it's SN 1006 and the fact that the coated production version is the Ross 105mm f3.8 indicate it's a pre production ptotype. In this case it's the lack of markings, but identiying nwhatnlens nees a lot of work.

Ian

 

[beefheart]

Are you sure it's an m42? looks like LTM

Of course, i'm sure

 

[Helios 1984]

It has a Russian wave. Is it sharp ?

 

[beefheart]

It has a Russian wave. Is it sharp ?

What do you mean by "russian wave"? Yes, it's sharp starting from 2,6.

 

[AgX]

"Russian Wave"?
Those wavy ridges for gripping?

 

[beefheart]

Lets put it another way, I have a Ross 108mm f3.8 Ensar lens (un-coates) in an Epsilon shutter. That lens was never marketed/sold but it was made as a prototype and someone hung on to it, then who knows they died, no-one else knows the histoty and I get it cheap at a camera fair.

The truth is it's SN 1006 and the fact that the coated production version is the Ross 105mm f3.8 indicate it's a pre production ptotype. In this case it's the lack of markings, but identiying nwhatnlens nees a lot of work.

Ian

Maybe you're right, Ian, it can be protype. I found nothing of the sort and can't remember lens with similar features which where in production...

 

[AgX]

In the listings of commercial soviet lenses I got there is no F 2.6 one at all.

 

[AgX]

This thread has been double posted!
(there was a url link here which no longer exists)

 

[BMbikerider]

The outward appearance of the design suggests that it has a Russian influence, but the design is too 'clean cut' and it looks so be of too high a quality to be from that part of the world. The thread looks as if if could be 39mm which would either put it in among the Leica clone types (Canon etc) but there is no rangefinder coupling.

There used to be a manufacturer in England owned by a guy called Ken Corfield and he made an inovative series of cameras where the 39mm thread was used but focusing was done via a rising and falling viewfinder which gave the cameras their name of Corfield Periflex (after the periscope type of focussing). They were very high quality instruments but have not been made since the very early 1960's. Are there any manufacturers markings on the lens at all apart from the F Number? The lenses for the 'Periflex' models did have the same type of design.

If they are infact of Russian origin, they may well be intended for one of the early Zenith reflex cameras the 3M which did have a 39mm screw thread or a model called the 'Start' from around 1950-55. Also with a 39mm lens mount which attached to the camera via an adpter. via a simple bayonet to screw adapter.

This camera seemed to be an amalgam of several different designs including the Exakta and had a full range of shutter speeds and the same type of film slitting knife where you could cut off exposed film from that remaining in the cassette. and a shutter rease button which was on the left hand side of the lens. The principal lens for this camera was a 58mm F2 Zeiss Biotar type with a fully auto diaphagm.

 

[Ian Grant]

I think it may possibly be a CZJ lens, the barrel is similar to the ones used on the Biotar and it looks like it has good coating judging by the reflections.

Ian

 

[David A. Goldfarb]

Threads merged.

 

[beefheart]

The outward appearance of the design suggests that it has a Russian influence, but the design is too 'clean cut' and it looks so be of too high a quality to be from that part of the world. The thread looks as if if could be 39mm which would either put it in among the Leica clone types (Canon etc) but there is no rangefinder coupling.

There used to be a manufacturer in England owned by a guy called Ken Corfield and he made an inovative series of cameras where the 39mm thread was used but focusing was done via a rising and falling viewfinder which gave the cameras their name of Corfield Periflex (after the periscope type of focussing). They were very high quality instruments but have not been made since the very early 1960's. Are there any manufacturers markings on the lens at all apart from the F Number? The lenses for the 'Periflex' models did have the same type of desig

If they are infact of Russian origin, they may well be intended for one of the early Zenith reflex cameras the 3M which did have a 39mm screw thread or a model called the 'Start' from around 1950-55. Also with a 39mm lens mount which attached to the camera via an adpter. via a simple bayonet to screw adapter.

This camera seemed to be an amalgam of several different designs including the Exakta and had a full range of shutter speeds and the same type of film slitting knife where you could cut off exposed film from that remaining in the cassette. and a shutter rease button which was on the left hand side of the lens. The principal lens for this camera was a 58mm F2 Zeiss Biotar type with a fully auto diaphagm.

There're no markings at all. And it's m42 nonetheless. I agree with you, that lens looks like better quality compared with soviet ones. In addition there're quality metal case and metal cups too.

 

[BMbikerider]

If you google...... peterloy.com...... a classic camera dealer based in London, whilst he may not have anything similar on his shelves his E Mail address is on the website, Drop him an E mail with the pictures and almost certainly he should be able to identify it for you.

 

[beefheart]

I think it may possibly be a CZJ lens, the barrel is similar to the ones used on the Biotar and it looks like it has good coating judging by the reflections.

Ian

For me it's more similar to german ones too

 

[beefheart]

If you google...... peterloy.com...... a classic camera dealer based in London, whilst he may not have anything similar on his shelves his E Mail address is on the website, Drop him an E mail with the pictures and almost certainly he should be able to identify it for you.

Thank you very much.

 

[Ian Grant]

There's something odd about the f2.6 because the front element diameter looks to be too small for an 80mm f2.6 lens.

Ian

 

[beefheart]

There's something odd about the f2.6 because the front element diameter looks to be too small for an 80mm f2.6 lens.

Ian

I'll try to test it.

 

[Helios 1984]

"Russian Wave"?
Those wavy ridges for gripping?

meant that it had a Russian aura, however it has a striking resemblance with the CJZ designs (Maybe a Biotar or Biometar prototype?).