I have a Canon 80D along with Tamron 17-50 2.8 and 70-200 2.8.
I'd like to eventually upgrade the 17-50 with a 24-70 2.8. Following that (a few years later probably) would probably be an upgrade to a full frame body.
I've heard that it would not be good to put a 27-70 lens on a crop body like the 80D. The reason given was that this is a "full-frame lens" and would result in some vignetting in the images on a crop body. I've not seen that with the 70-200, so would it happen on the 24-70?
What are your thoughts on this?
Thank you
I've used plenty of "full frame" lenses and never had an issue with vignetting.






