View Single Post

Old 10-09-2019   #4
retinax
Registered User
 
retinax is offline
Join Date: Aug 2015
Posts: 1,164
No, to reiterate: a 35 for aps-c is not a wide. Maybe stop thinking in terms of focal length, think in terms of angle of view. A 35 that's made for Aps-c could be the same design as a 50 for full frame, downscaled. It doesn't need to cover full frame, therefore it doesn't need to be wide-angle, unlike a lens of the same focal length that is for use on full frame or larger. And there you have the answer to why these 35 mm lenses for aps-c can be sonnar designs, very fast etc. They do the same thing a 50 for full frame does, in terms of angle of view, and projected image, and can thus be of the same design.
  Reply With Quote