M42 adapter (chip) for EOS from phototools24

[makaistd]

Hi,

I have a Canon EOS 350D, and tried the chipped M42 to EOS adapter from phototools24 on ebay to use a Super-Multi-Coated Takumar 135/3.5 on it. It seems that it lacks infinity focus quite a bit when wide open, but also at smaller apertures it's not really sharp. Shorter distances seem to work fine.

Does anyone have experience with this combination? Or with this adapter in general? I couldn't try it with another lens yet (traveling, only have this one with me, and the lens is new), so can't rule that it might be the lens - although it seems to be in near-mint condition.

Thanks in advance!

[ManualFocus-G]

Problem is, many sellers seem to sell the same adapters, and these adapters seem to be made in batches by different sellers. Occasionally a bad batch comes out with poor tollerances and they are too thick (in your case) or thin.

I'd buy another one from someone else, but buy one that looks different

Obviously try another lens first though!