Originally posted by IgorZ Was it difficult to adapt?
No very easy - for me. I've adapted dozens of rare/odd-ball lenses and have a knack for doing it.
This is a fixed focus lens. No ability to focus it, but it does have wonderful "built in" controls for aperture and shutter speed (although the fastest shutter speed available through the lens is only 1/50th - so I needed to disable the shutter on the lens and use the shutter on the camera itself).
I have an APS-C mirrorless Fuji X. I knew it would fit on that. Well I tried it out on that camera, and the fixed focus point was maybe about 6 feet away.
I was encouraged, so then I held it in front of the sensor on my K1 full frame. The fixed focus point was now shortened to only a couple of feet in front of the lens. Basically, a pop/soda can when in focus would fill up the entire frame. That works for me.
Even though that was a little too close to be optimum, I none the less decided to adapt it for use on my K1 because I like the idea of using the entire lens and not just the central portion of it.
I have bins full of hundreds of extra lens parts/adapters/rings/mounts etc. After a bit of trial and error, I was able to properly fit this Wollensack ossilloscope lens to my K1 by using only 4 parts that all fit together very nicely. Easy process for me, but probably not easy for someone who does not have the parts laying around or experience adapting odd-ball old lenses.
If anyone wants me to do it for them, and can send me the lens, I'll do it for you for a reasonable fee. I believe that I have enough of these spare parts laying around to adapt a few more of these lenses. Can put on any of the following mounts: fuji, canon, nikon, and of course Pentax.