EXCERPT page containing first few paragraphs. 2021-03-06 21:54:52
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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.
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