80mm f/2.8 Xenotar

f/2.8 (center sharpness) Acceptable (edge sharpness) Acceptable

f/4 (center sharpness) Good (edge sharpness) Acceptable

f/5.6 (center sharpness) Excellent (edge sharpness) Good

f/8 (center sharpness) Excellent (edge sharpness) Good

f/11 (center sharpness) Excellent (edge sharpness) Good

f/16 (center sharpness) Excellent (edge sharpness) Very Good

f/22 (center sharpness) Very Good (edge sharpness) Very Good

80mm f/2.8 Planar

f/2.8 (center sharpness) Acceptable (edge sharpness) Acceptable

f/4 (center sharpness) Good (edge sharpness) Acceptable

f/5.6 (center sharpness) Good (edge sharpness) Good

f/8 (center sharpness) Very Good (edge sharpness) Good

f/11 (center sharpness) Very Good (edge sharpness) V.Good-Excellent

f/16 (center sharpness) Excellent (edge sharpness) V.Good-Excellent

f/22 (center sharpness) Very Good (edge sharpness) Very Good

75mm f/3.5 Xenotar

f/3.5 (center sharpness) Good (edge sharpness) Acceptable

f/4 (center sharpness) Good (edge sharpness) Acceptable

f/5.6 (center sharpness) Very Good (edge sharpness) Acceptable

f/8 (center sharpness) Very Good (edge sharpness) Good

f/11 (center sharpness) Excellent (edge sharpness) Good

f/16 (center sharpness) Very Good (edge sharpness) Good

f/22 (center sharpness) Very Good (edge sharpness) Good

75mm f/3.5 Planar

f/3.5 (center sharpness) Good (edge sharpness) Acceptable

f/4 (center sharpness) Very Good (edge sharpness) Acceptable

f/5.6 (center sharpness) Excellent (edge sharpness) Good

f/8 (center sharpness) Excellent (edge sharpness) Good

f/11 (center sharpness) Excellent (edge sharpness) Very Good

f/16 (center sharpness) Excellent (edge sharpness) Very Good

f/22 (center sharpness) Very Good (edge sharpness) Good