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EXCERPT page containing first few paragraphs. 2022-10-06 03:55:23

150MP Phase One IQ4
Schneider Kreuznach LS 40-80mm f/4-5.6

Examples: EasternSierra (IQ4 150)

These examples in the Eastern Sierra.

Includes images up to full 151MP camera resolution (14204 X 10652).

@40mm: Wind Driven Clouds at Lundy Canyon Dam

This example shows the same extreme peripheral forward field curvature behavior seen in Comparing f/8 to f/11 for landscape.

Focused in the far distance, sharpness in the center is high, very nice. But it quickly declines towards the edges of the frame, very badly so. And yet the sharpness is very high at much closer range—see the bottom right corner area and how dramatically sharper it is than the mountainside in the far distance.

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f11 @ 1/1250 sec electronic shutter, ISO 50; 2019-12-06 11:56:17
Phase One IQ4 + Schneider Kreuznach LS 40-80mm f/4-5.6 @ 40mm
ENV: Lundy Canyon, altitude 7000 ft / 2134 m, 45°F / 7°C
RAW: LACA corrected, SmartSharpen{40,0.9,0}

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