Hi All, I noticed that the shots I've taken with my York Optical 80ED and the WO Flat 2 0.8x reducer have quite pronounced vignetting in the corners of the image. Is this normal or is it a function of where the camera's focal plane is in distance from the reducer. The reducer has a camera adaptor thread so I have it going straight to camera... maybe 30-40mm distance between glass and focal plane? Ideas?
regards,
Rob