(05-17-2023, 11:31 AM)Klaus Wrote: Their examples illustrating vignetting were shot at 2:1, and it's gone at 1:1.
A 100mm f/2.8 is a simple being. I'd actually expect it to be rather sharp.
Of course, at just $400, you have to manage expectations to some degree.
By tilting or shifting, it is normal that there will be vignetting on one side. The degree of vignetting depends on the different magnifications (No vignetting when used on X-mount and M43-mount cameras)
those are the exact words of the manufacturer and they are not related to magnification