GOI Helios 75mm f1.35 protoype cinema lens 1939

Hello! Found such a lens in 2018. It is in the GOI album, released in 1939 for shooting films.



This is one of the earliest helios, never produced serially. In addition to the GOI Helios 75mm 1.35, prototypes were made with a focal length of 50mm and 100mm with an aperture of f1.35. As well as 50, 75 and 100mm f2.0, which are prototypes of next PO, Ж, OKS and other f2.0 cinema lenses. I did not manage to find other GOI lenses f1.35 neither in Russia nor abroad (I checked all possible forums, databases, social networks, collectors, auctions, etc.).

According to the most probable version, the lens is made as an analogue of the German lens for shooting films of Carl Zeiss Biotar 7cm 1.4 1929. I adapted the lens for shooting on a full frame canon.

I would like to know if there is information about other GOI lenses f1.35 or f2.0 and what is the approximate cost of such a lens when it is sold at auction?

Hello Alexander.
This is very interesting.
Could you please share photos made with the lens ?

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Originally posted by Alfa2

Hello Alexander.
This is very interesting.
Could you please share photos made with the lens ?

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Yes, here are a few photos on the full-frame Canon 6D on the open F1.35

Thank you very much.

Great lens. Bokeh is fantastic.

Really, I am astonished too by the bokeh.
The misty halo around the children is fantastic...

Thanks, Lexx!

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Originally posted by Alfa2

Thank you very much.
Great lens. Bokeh is fantastic.

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Thank! I like it too. Very unusual

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Originally posted by Jacques M.


Really, I am astonished too by the bokeh.
The misty halo around the children is fantastic...

Thanks, Lexx!

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Glad you liked how this lens shoots. That's why I don’t know whether to sell it, I own it for a year now and don’t dare to do it. Although if the lens is in a decent and well-known collection, I will also be pleased because I don't use it often, it’s mostly stored in a box.