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EXCERPT page containing first few paragraphs. 2021-09-28 04:10:23

47MP Panasonic S1R
Leica 75mm f/2 APO-Summicron-SL ASPH

Examples: Focus Stacking in Multi-Shot High-Res Mode

Panasonic S1R firmware version 1.0, Leica 75/2 APO firmware version 1.0.

These examples explore the world-class optical performance of the 75mm f/2 APO-Summicron-SL ASPH when used on the Panasonic S1R in Multi-Shot High-Res mode for focus stacking.

To a certain extent, the focus instability issue disappears with focus stacking in that refocusing is done for each frame. Except that tolerances are so tight that a minor focus error in HighRes mode could be the kiss of death for a series of frames for stacking (resulting in a blurry gap)—tightly space the focusing to avoid such issues. See Panasonic S1R: Notes on Focusing in HighRes Mode.

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f8 @ 1/30 sec focus stack 2 frames, ISO 50; 2019-06-07 13:26:22
Panasonic S1R + Leica 75mm f/2 APO-Summicron-SL ASPH
ENV: Mono Lake, altitude 6400 ft / 1951 m, 75°F / 23°C
RAW: LACA corrected, distortion corrected, USM {8,50,0}

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