Samuli Vahonen Offline Upload & Sell: Off
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Last summer I tried to use Contax S-Planar T* 2.8/60 for non-makro / non-closeup work. I just could not find much love for the rendering style at medium/long shooting distances. I like the lens rendering quite a lot for close-ups (~1:10 magnification), and makros.
This lens clearly demonstrates that when sagittal and tangential lines separate boke is awful. If you look MTF-graphs (link to Zeiss lens PDF) the infinity graph is pretty awful, 1:10 magnification graph is extreme good, and lines stay pretty well together (and boke is pretty good @ 1:10, not shown in these photos).
Carl Zeiss S-Planar T* 2.8/60 CY @ f/5.6, 1/400s, ILCE-7R @ ISO 100 - focus plane is not as bad as MTF chart looks like, but even at f/5.6 the very far away boke looks awful
Carl Zeiss S-Planar T* 2.8/60 CY @ f/2.8, 1/200s, ILCE-7R @ ISO 100 - again focus plane doesn't look so bad, even this is shoot wide open - boke looks busy and boke highlights have strong concentration of light to outer ring
Carl Zeiss S-Planar T* 2.8/60 CY @ f/2.8, 1/250s, ILCE-7R @ ISO 100 - Wow, found the hotspot for bad boke
Carl Zeiss S-Planar T* 2.8/60 CY @ f/5.6, 1/100s, ILCE-7R @ ISO 100 - Getting closer (about 1:20) and focus plane obviously starts to be very high quality but boke is very "thick", even lots of ugliness has vanished due to closer focus distance
Carl Zeiss S-Planar T* 2.8/60 CY @ f/5.6, 1/125s, ILCE-7R @ ISO 100 - mid-distance landscapes tend to render quite ok, but somehow lens takes diffraction badly (clear weakening when closing down to f/8)
Samuli
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