Help needed on lens project!

Started Apr 4, 2021 | Questions
Will T
Will T Regular Member • Posts: 354
Help needed on lens project!

The idea is to upgrade a binocular film camera to digital.

The idea is to replace the camera with a lens mount thus making the binocular into a lens for an interchangeable lens camera.

I am looking for suggestions of what camera to use.

I have a Canon EOS M100 that I was thinking of using, am I wrong?

Do to the 1/2 frame format & film plane spacing a near APSC mirrorless system would work best.

I have a machine shop in mind to make the mount for the lens plate/ bayonet.

Please give me suggestions as to what camera/mount/brand excettera with why you think it would be best.

Here are some photos so you can visualize the application.

Thanks for your help.

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Will T.
"Galleries don't hang DxO charts" David Hull

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Canon EOS M100
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Lemming51
Lemming51 Forum Pro • Posts: 15,261
Re: Help needed on lens project!

Fun project, though your proposed hack would hammer its collector value. I see one on ebay going for about $1000 USD.

per pics and notes on the innerwebs, the binocular lens is 165mm f/3.5. I think it'd be better on a smaller format than the M100 (1.6x "crop factor"), like a m4/3 (2x "crop factor") or even smaller like an old Nikon 1 (2.7x "crop factor").

IMHO, YMMV.

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Will T
OP Will T Regular Member • Posts: 354
Re: Help needed on lens project!
2

With testing a 1.6 crop is just the right size.

I have acquired a rear EF-M lens flange to use.

Now to do the machining required.

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Will T.
"Galleries don't hang DxO charts" David Hull

Kjeld Olesen
Kjeld Olesen Veteran Member • Posts: 4,470
Re: Help needed on lens project!

As said above, a very interesting project, but I suspect you will be disappointed by the optical quality of the lens, having to operate with no stop-down mechanism, and probably not designed for projecting an image to a flat surface

Good luck all the same, we will look forward to seeing the results.

Will T wrote:

With testing a 1.6 crop is just the right size.

I have acquired a rear EF-M lens flange to use.

Now to do the machining required.

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