Zenitar 16 FE- presentation and samples

Started Mar 18, 2006 | Discussions thread
Abbazz
Abbazz Contributing Member • Posts: 913
Re: Zenitar sharper than Nikon at 12mm at F11

Jonas B wrote:

D TONG wrote:

-snip-
By the way. Always shoot aperture preferred at f/11 with the Zenitar.
It sharpens up dramatically at that f stop.

I can't agree about the choice of aperture.

My copy is best around f/5.6. See a simple test chart here (this very
thread):
http://forums.dpreview.com/forums/read.asp?forum=1036&message=17658813

The Ken Rockwell review is about a Zenitar lens mounted on a Canon EOS 5D full frame camera. Diffraction limits the resolution on crop format cameras from f/8 on. On crop format cameras like the Pentax DSLRs, most lenses exhibit better results at f/5.6, some others at f/8 despite the diffraction toll, but never at f/11 where the softness caused by diffraction becomes overwhelming. On a full frame camera, many lenses exhibit better sharpness than on a crop format camera, because they can be used at f/8 or f/11 where they have better resolution, without having to suffer heavily from diffraction.

Cheers!

Abbazz
Fujica G690 online resource: http://artbig.com/

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