12-16-2013, 11:30 AM
Well, the Otus is a little bit bigger , isn't it ? And more than a stop slower.
As a rule of the thumbs you can double the size/weight per stop (when keeping the quality).
The results aren't that bad at max aperture IMHO (in relation to the aperture).
As a rule of the thumbs you can double the size/weight per stop (when keeping the quality).
The results aren't that bad at max aperture IMHO (in relation to the aperture).