08-17-2016, 07:41 PM
this time for full frame sensors 
http://www.lens-rumors.com/new-patent-ca...-usm-lens/
A patent is a start... let's see, if it will appear at photo dealers.

http://www.lens-rumors.com/new-patent-ca...-usm-lens/
A patent is a start... let's see, if it will appear at photo dealers.