09-05-2016, 10:04 AM
Quote:Don't compare these lenses only on their target camera factor: The Tamron you can put in front of a lot of APS-C bodies, then it's equiv. 225-900 and still speedy enough, plus crops the sweet spot out of the picture.Yes the MKI is soft at F6.3, but, cropping for the sweet spot or not the Tamron is way sharper on FF than on APSc, everyone seems to forget the APSc sensor needs to be magnified to 2.25 times the area for the same picture size.....
bang goes that sweet spot advantage!