Drunn

Very true... did several tests to get to same result. I´m struggling to get a good infinity focus on longer lenses... From 200mm - 300mm it gets very hard. I´ve tried as a Taking Lens on a Schneider Kreuznach: Canon 300mm F4L IS Result: Impossible to focus at the moment. Anyone knows to explain a possible optics incompatibility? Takumar 200mm F3.5 Result: Quite ok but not perfect - See de video... Takumar 120mm Good result at F8-F11 Helios 44M-6 Perfect focus from F5.6

Any experiencies with long taking lens - I,m trying wit a Schneider Kreuznach and a Takumar 200mm f3.5 and it´s very hard to get a clean infinity focus. Also tried with a Canon 300mm F4 L and them it´s doesn´t work at any distance. Is there anyone using with sucess a long taking lens, 200mm-300mm?