Originally posted by rawr At that focal length vignetting of that order is not uncommon. It's not a reliable guide to the FF suitability of this lens.
Right. Whoever states that the DA 560 "is not FF" either has no knowledge or a personal agenda to make the lens look bad.
For one both the Canon 500/4 (vignettes up to 1,5 EV) and the Tamron 150-600 (vignettes up to 1,4 EV) would not be "FF suitable":
Canon EF 500mm f/4L IS II USM Lens Vignetting
Same applies to the Canon 600/4.
What a laugh.
Then every child would understand that a criterion has to be met at all scenarios, not only at a handchosen one you personally like or want. So if a certain degree of vignetting makes a lens a non-FF one then please look at the Sigma 35 Art:
Sigma 35mm f/1.4 DG HSM Art Lens Vignetting
Does a whopping 3,5 EV vignetting. Surely a mFT lens and no FF?
And no, it does not make sense to say "that is normal for...". Because if you follow this path then you can pretty much create any negative remark about anything and protect your personal favorites deliberately.
How about "a camera is not FF if it doesnt offer better dynamic range than all APSC cameras"? (which normally it should) Surely Canon does not offer ANY FF camera.