Sony 70-200 f/2.8 G
Minolta 135mm f/2.8 (another 20 years old lens)
Sony 135mm T4.5 STF.
(Even if two lenses are called "Sony", all three are actually Minolta designs).
f-stop | Minolta 135mm f/2.8 | Sony 70-200 f/2.8 G | Sony 135mm STF |
f/2.8-T4.5 |  |  |  |
f/4-T5.6 |  |  |  |
f/5.6 |  |  | |
f/8 |  |  | |
f/11 |  |  |
Interestingly, the best corner performance comes from the tiny 135mm f/2.8 prime (look at the writing on the newspaper). The STF does not quite live to its reputation, since is the least sharp of the three. In all fairness however, I should point out that all three lenses are close to perfection at full aperture and that the differences are inconsequential.
