Canon FD 28-85mm f/4 Canon AE-1 with self-timer

@ 28mm setting Vignetting = D @ f/4, B- @ f/5.6, B+ @ f/8 Distortion = pronounced barrel Aperture Center Corner
f/4      B-     B- 
f/5.6    B+     B+ 
f/8      B+     A- 
f/11     A-     A- 
f/16     B+     B+ 
f/22     B+     B 
Notes: moderately high contrast, outperformed by the 28-55mm Canon FD at this focal length.

@ 35mm setting Vignetting = B @ f/4, B+ @ f/5.6Distortion = moderate barrel 
Aperture Center Corner 
f/4.0    B      B- 
f/5.6    B+     B+ 
f/8      A-     A- 
f/11     A-     A- 
f/16     A-     B+
f/22     B+     B 
Note: moderately high contrast throughout.

@ 85mm setting Vignetting = B+ @ f/4, A- @ f/5.6Distortion = slight pincushion 
Aperture Center Corner 
f/4.0    B+     C+ 
f/5.6    A-     B 
f/8      A-     B+ 
f/11     B+     B+ 
f/16     B+     B+
f/22     B+     B+ 
Note: moderately high contrast.