Oct 16, 2017 · The difference between these two lenses is that the 18-55mm is a zoom lens, while the 50mm is a prime lens. A zoom lens allows you to zoom in, capturing multiple focal lengths without changing lenses. A prime lens is fixed, meaning that you can’t zoom in with it, and will only be able to capture one focal length. May 24, 2001 · Mamiya RZ 67 II camera, like its brother, the RB67, has a couple of features that set it ahead of the field in medium-format cameras. The revolving film back and the close focusing bellows.
ISO 64 on a Nikon D810 gets me medium format-esque signal:noise ratio (image cleanliness), along with subject isolation I can't get on medium format just yet, not at this focal length anyway (which would require a non-existent 44mm F2.5 MF lens). The incredible sharpness of this lens means I get good use out of those 36MP even wide open at F2.