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EXCERPT page containing first few paragraphs. 2022-08-18 16:23:01

Pentax 645D

Examples (UltraHD) in the Forest with D FA 55/2.8

Examples shot the very first day even before I had a chance to fully charge the battery. For most of these images, the lighting was very blue, deep in a canyon late in the day, so white balance was a guessing game.

DFA 55/2.8 = Pentax-D FA 645 55mm F2.8 AL[IF] SDM AW

Images on this page are reprocessed images (April 2014) using the latest Adobe Camera Raw with settings consistent with 2013/2014 reviews.


Judge sharpness only by the sharpest crops; depth of field is very limited with a 40 megapixel camera, on a per-pixel basis. Field curvature can also affect sharpness. Still, the lens is probably not as good as one might wish for the sensor.

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Pentax 645D + DFA 55/2.8 @ f/13, 5 sec, ISO 100, 1/3 stop pull

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