“Is there still life in medium format cameras? Pentax thinks so with the introduction of the 645Z, the second medium format model in its digital line. Replacing the 40-megapixel 645D, the 51-megapixel 645Z makes some critical changes, including a price drop. Does it fulfil the large-sensor dream?
To the uninitiated the 645Z looks like a giant wedge of camera; a bit of a beast. It is large, but for good reason: the 43.8 x 32.8mm sensor inside is around 1.7 times larger than even a full-frame DSLR sensor and that needs ample light coverage and, therefore a greater distance between the rear of the lens and the sensor surface.”
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