Phase One IQ4 + Schneider Kreuznach LS 40-80mm f/4-5.6 Aperture Series @ 55mm: 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 55mm f/2.8
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 55mm f/2.8
This aperture series look at performance of the Schneider Kreuznach LS 40-80mm f/4-5.6 on a planar target at far distance. Key issues include sharpness across the frame and in particular, peripheral forward field curvature.
One IQ4 + Schneider Kreuznach LS 40-80mm f/4-5.6 Aperture Series @ 55mm: 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 @ 1/40 sec, ISO 64; 2019-11-29 08:51:03
Phase One IQ4 + Schneider Kreuznach LS 40-80mm f/4-5.6 @ 55mm
RAW: LACA corrected, USM {8,50,0}, SmartSharpen{120,0.7,0}
Phase One IQ4 + Schneider Kreuznach LS 40-80mm f/4-5.6 @ 55mm
RAW: LACA corrected, USM {8,50,0}, SmartSharpen{120,0.7,0}
[low-res image for bot] Bottom of frame cropped off
