Originally posted by gofour3 Yes it looks like vignetting does occurs wide open with the K50/1.4.
Shot was taken with my K2DMD on “auto” shutter @ f1.4. (Fuji Provia 400)
Phil.
Phil
thanks but...
i think the lighting was not uniform, this has about 1 1/3 stops vignetting within the central 214 x 16 mm frame of a DSLR which is about twice what I measure with a digital camera.
it does however suggest that the vignetting I see is purely the lens, as also indicated by the posted test results which suggest vignetting is present on all 50mm lenses tested until stopped down.
to al the others who posted real shots, thanks, but the amount of vignetting present is not normally noticible unless there is a completely uniform surface. In real world photography it does not really matter much.
Note that the origonal request for this was based upon someone posting a link to a test stating that DSLR makers were faking the ISO because of non perpendicular light hitting the sensors and not being recorded. The further went on to claim that fast 50mm lenses were not as fast as people were led to believe.
so much for their theory