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EXCERPT page containing first few paragraphs. 2019-07-21 00:47:51

Pentax K-1 Mark II
Pentax HD FA 50mm f/1.4

Examples: White Mountains

These examples shot in the White Mountains of California late in the day to night.

Ancient Bristlecone Pine just after sunset

At f/9, the Pentax 50/1.4 is performing at is best but with some loss of micro contrast from diffraction, mostly dealt with via sharpening. Here I did not use diffraction mitigating sharpening because I did not want to increase the fine-grained noise (minimized by use of pixel shift, but still there). Instead I used only wide radius contrast enhancement.

Pixel shift mode on the Pentax K-1 Mark II can be a godsend for images like the one below, which required considerable contrast control. While it often has issues from subject motion and is thus inapplicable, when it works, it halves the noise level, which makes for ultra low noise even with aggressive contrast control where deep shadows are opened up. The noise is far superior to the Nikon D850 or Nikon Z7, including a freedom from hot pixels.

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Diglloyd DAP is DSLR-oriented, but also contains workflow and other topics. Much of the focus is on Canon and Nikon but also Pentax and Pentax medium format.

Special emphasis is placed on lens evaluation, focusing on Canon and Nikon and Sigma lenses, but with a few others like Rokinon/Samyang.

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Ancient Bristlecone Pine just after sunset
f9 @ 3.0 sec PixelShift, ISO 100; 2018-11-25 16:54:38
[location “White Mountain Road”, altitude 10600 ft / 3231 m, 35°F / 1°C, USM{8,50,0}, LACA corrected]
PENTAX K-1 Mark II + Pentax HD FA 50mm f/1.4 SDM AW

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