Upload & Sell: Off
I tried m42 lenses CZJ 35 2.4, Pentax M42 50mm 1.4, Jupiter 9 85mm, CZJ 135 3.5 and no problems with fitting. I found problems with OM lenses pin behind the lens so I didn't push the 21/3.5 as it wasn't fitting. I will check it more this weekend. I haven't checked the shots yet.
I do have a 21/3.5 as well as the F2. I eyeballed it last night and thought it might be a problem, certainly not as clear an issue as the 18mm. I'll be checking measurements on my OMs tonight + a few others and the SB. I hope I'm wrong on a least some of the lenses. You can see a x-section schematic I put up in a gallery to see what I'm talking about. I'll add any photos taken from the weekend outings and the measurements for the arrow positions, together with the height of the fins for the lenses. I'll do as many as I can, mainly wide to normals.
Thanks for the information.
Personally, the lenses I would like to try with the Speedbooster would be:
Oly 21 3.5, Zeiss C/Y 28 2.8, C/Y 50 1.7, C/Y 85 2.8, CZJ 35 2.4, Nikkor AIS 55 3.5 macro and maybe the CZJ 135 3.5