FE
Full frame / 1.00x
No
100 mm.
100 mm.
1.00x
No
No / n.a.
Aperture
f/2.8
11
Yes
Yes
No
Focus
Yes
Yes
Indirect
No
Smooth Trans Focus
57 cm.
0.25x (35mm. equiv)
Build
Yes
14/11
1 apodized,1 aspherical, 1 extra low dispersion
72 mm.
Yes
Yes
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- OpticalLimits
8/10
It is certainly a controversial lens. In terms of sheer depth-of-field power and speed, it is a mediocre lens. However, the quality of the bokeh is second to none (also compared to STF offerings from other manufacturers). The decision should surely be made based on the target application. [...] It is very sharp at T/5.6 and even more so at T/8. If you look hard you may find some lateral CAs.