kdmorris wrote:
Really?
The only difference in today’s digital age is the auto focus system and the digital system. I know this because I have been shooting with Canon for over 40 years.
I have used USM, Kit lenses as well as L series on a 30D, 70D, 5D MK II and iii with zero issues other than the crop factor, no other issues.
And my reply was to the original author...not you.
Canon EF lens will mount to a Canon crop body. Try mounting an EF-S (Crop) lens to a Canon FF body. Please let us know the result.