Pentax 645D

The Pentax 645D is a medium format digital SLR camera announced by Pentax on March 10, 2010. Unlike other medium-format DSLRs, which accept digital camera backs of different resolutions or even manufacturers, the 645D has a fixed-back design similar to smaller full-frame and APS-C DSLRs. The fixed back allows the 645D to be fully weather-sealed.

Pentax 645D

The Pentax 645D is a medium format digital SLR camera announced by Pentax on March 10, 2010. Unlike other medium-format DSLRs, which accept digital camera backs of different resolutions or even manufacturers, the 645D has a fixed-back design similar to smaller full-frame and APS-C DSLRs. The fixed back allows the 645D to be fully weather-sealed.