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Pentax 645D Images Updated to UltraHD, Large Crops

With the Pentax 645z 50-megapixel medium format camera due in June, I wanted to refresh my memory of how the 40-megapixel 645D performs (I distinctly remember the fabulous sensor, but other details about lens performance had become fuzzy 3 years later).

Accordingly, my review of the Pentax 645D has been updated to redo many images in UltraHD size with vastly larger crops. I did this anticipating that the 645z will be at least as demanding as the 645D in terms of lens performance.

See the DAP chronological index for pages that are now updated.

Pentax 645D + Pentax 75mm f/2.8
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