Phase One IQ4 + Schneider Kreuznach LS 40-80mm f/4-5.6 Aperture Series @ 40mm: Mosaic

2019-12-01 • SEND FEEDBACK |
Related: focus skew, lens mount / sensor parallelism, lens skew, medium format, Phase One, Phase One 80mm f/2.8 AF, Phase One digital backs, Phase One IQ4 digital back, quality control, Schneider, Schneider Kreuznach, Schneider Kreuznach Lenses, Schneider Kreuznach LS, Schneider Kreuznach LS 120mm f/4 Macro

This aperture series look at performance of the Schneider Kreuznach LS 40-80mm f/4-5.6 at 40mm on a planar target at far distance. Key issues include sharpness across the frame and particularly peripheral forward field curvature and focus shift.

In diglloyd Medium Format:

One IQ4 + Schneider Kreuznach LS 40-80mm f/4-5.6 Aperture Series @ 40mm: Mosaic

Includes images up to full 150MP camera resolution (14204 X 10652) from f/5 through f/11 including 100 megapixel versions for perspective vs other medium format cameras, plus crops.

f8 @ 1/25 sec, ISO 64; 2019-11-29 08:45:56
Phase One IQ4 + Schneider Kreuznach LS 40-80mm f/4-5.6 @ 40mm
RAW: LACA corrected, USM {8,50,0}, SmartSharpen{120,0.7,0}

[low-res image for bot] Bottom of frame cropped off