Hi all,
New to this setup.
I've had the camera away for quite some time and was finally on a holiday so took some pics and found fairly strong black marking at all 4 corners.
This did not happen when I first got the camera and lens. not sure whats changed or how to "reset" it if possible?
Thanks for any help!
Were you using a hood, filters?? An example would be helpful.
Edit: I see now that the used lens is a Viltrox 1.4/56 and the vignetting is still there using a 2/23….
but nevertheless a possible reason for pseudovignetting:
had the same problem with a Canon 5D 10 y ago…
When I saw the very strong „vignetting“ I found out that the rectangular hood I used was not exactly in the correct position, but about 10-30 degrees from the right position. So, the edges of the hood were not yet in the same position as the frame of the sensor and the Edge of the hood was in the frame.
in this position you have in fact the edge of the hood in the very foreground (with blur, because far under the minimum focal distance.
could also be caused by a rectangular Filter in front of the lens or something like that…
A different reason might be that you did in former times shoot with Autocorrection „on“ and now you shoot without it.
ALL fast lenses have more or less important vignetting if used wide open and without Autocorrection in-camera „on“.
Lenses with apertures of 1.2 or 1.4 often have a loss of 2-3 EV at the borders or in the corners. As for the 1.2/56 it is even less: 1,8 EV without and 0.9 EV with Autocorrection in-camera @ f=1.2
a lens that gets decentered might show similar „vignetting“…