mikefiction
Member
I picked up a PME90.
So using a 150mm+ lens or tubes will cause the top of the image to vignette in the viewfinder on a non GMS (Gliding Mirror System) body like the 500CM.
Does this affect the accuracy of metered prisms compared to GMS bodies like the 501CM?
So using a 150mm+ lens or tubes will cause the top of the image to vignette in the viewfinder on a non GMS (Gliding Mirror System) body like the 500CM.
Does this affect the accuracy of metered prisms compared to GMS bodies like the 501CM?