Pentax Super-Multi-Coated Takumar 28 f3.5 and Minolta MC W.Rokkor-SI 28 f2.5.
Upper left corner and lower right corner is Pentax. Lower left corner and upper right corner is Minolta. Both lenses were stopped down to f8. Focused to infinity lenses are close to equal in terms of resolution. Pentax has slightly wider field of view.
Minolta is slightly sharper at close and medium distances whereas Pentax is sharper at infinity.
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