First of all this is my post on these forums so hello to everybody.I am however a longtime user and a big fan of this site.Anyway - to the topic...


I compared some vignetting results between Canon & Nikon primes only to discover that Canon primes vignette up to three stops in the corners where Nikon primes vignette up to 1 stop.Both wide open.The general rule would be that Canon lenses generally vignette three times as much as Nikon lenses from center of the frame on.Differences are smaller as lens are stopped down but the pattern remains.So my question is:


Is something wrong with these tests (perhaps files where unintentionally corrected) or is there really such a difference?





Thanks