01-13-2011, 09:57 AM
HelloWim,
Thanks for valuable input. I didn’t know that canon calibrate lenses at 50xFL.
I have one Tokina 100macro that front focus at longer distances. Up until 3meter is ok. At 5meter front focus a little bit but acceptable. At 20 meters front focus seriously.
I end-up with micro-adjustment at 5meters. Unfortunaely If I try to take group porthret from let say 20meters at 2,8 I have blurred faces.
This combined with severe glare problems makes me to think to sell this lens.
BTW this lens suffers from huge LoCA too, but they can be avoided by postprocessing somehow.
greetings,
Miro
Thanks for valuable input. I didn’t know that canon calibrate lenses at 50xFL.
I have one Tokina 100macro that front focus at longer distances. Up until 3meter is ok. At 5meter front focus a little bit but acceptable. At 20 meters front focus seriously.
I end-up with micro-adjustment at 5meters. Unfortunaely If I try to take group porthret from let say 20meters at 2,8 I have blurred faces.
This combined with severe glare problems makes me to think to sell this lens.
BTW this lens suffers from huge LoCA too, but they can be avoided by postprocessing somehow.
greetings,
Miro