Mamiya 645 AF medium format zoom covering 35-70mm equiv with leaf shutter and AF.
The Mamiya 55-110mm f/4.5 AF is a standard zoom for the Mamiya 645 AF medium format system, covering approximately a 35-70mm equivalent range on the 645 format. The autofocus capability distinguishes the Mamiya 645 AF system from manual-focus medium format alternatives, providing convenience for wedding and event photography.
Optical quality is good with the medium format negative size ensuring generous detail and tonal range from every frame. The f/4.5 constant aperture maintains consistent exposure across the zoom range. The leaf shutter enables flash sync at all speeds, essential for wedding and portrait studio work.
Build quality follows Mamiya's professional standards with solid construction and reliable mechanical operation. The AF motor provides functional autofocus for the deliberate shooting style that medium format photography encourages. The lens balances well on Mamiya 645 AF bodies for comfortable handheld operation.
On the used market, the Mamiya 55-110mm f/4.5 AF offers medium format zoom convenience for the 645 AF system at modest prices. For Mamiya 645 AF users wanting a versatile standard zoom for events and general photography, it provides the zoom flexibility that medium format prime-only systems cannot match.