Received the new Pentax K1 and decided to run a few test with the older vintage lenses I still have.
Nothing special with the images and minimal post processing, just to show the clarity. Have been pleasantly surprised with the results. I’ll list the lens below each shot posted for reference.
Kiron 28-105 2.8 (respectively), some vignetting at 28 and a little purple fringing. Still very sharp for its age. Shot at f8.
Tokina 70-210 4.5-5.6 (respectively), Slight purple fringing at 210, sharper than my current Sigma 70-200 2.8 APO DG. Shot at f8
Tamron SP90 Macro 1:1, very sharp. Shot at f8
Tokina 70-210 4.5-5.6 @210 with +10 Diopter, shot at f8. Some purple fringing with no hood but pleasantly surprised.