02-08-2017, 06:51 PM
The 100/2.8 STF is quite large for a 100/2.8. Same like the 135/2.8 STF was large for a 135/2.8.
Maybe the 100 STF will be as good wide open: zero vignetting and no cat eyes.
Supposedly, the 100 is T/5.6 instead of T/4.5 (like the 135 was) because of a thicker Apodization glass for smoother bokeh.
Maybe the 100 STF will be as good wide open: zero vignetting and no cat eyes.
Supposedly, the 100 is T/5.6 instead of T/4.5 (like the 135 was) because of a thicker Apodization glass for smoother bokeh.