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.

[1] Pentax celebrated this with the release of a limited edition of the camera.

[2] VIDEO: 720p / 1080p / 4K This camera-related article is a stub.