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Minolta Cosina 28-70 3.5-4.8
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PostPosted: Sat Aug 20, 2011 10:23 pm    Post subject: Reply with quote

First shot for sharpness is at f3.5. No PP.
Second shot is at f5.6. No PP.
Comments and Critiques are welcome.




PostPosted: Sun Aug 21, 2011 5:11 am    Post subject: Reply with quote

I tried a simple test to show sharpness.They are shot at f3.5-f11 with no PP. Just resized.
Quarter and Key at f3.5
Please C/C Any comments are welcome.



Quarter and Key at f5.6



Quarter and Key at f8



Quarter and Key at f11



PostPosted: Mon Aug 22, 2011 1:06 am    Post subject: Reply with quote

My vision isn't that good so comments and corrections are welcome. What I see on the Quarter/Key test is average at f3.5, sharpens up at f5.6,a little less sharp at f8, and crap at f11.
I really need to reshoot f11 and double check the results.

There are 1/2 stops on this lens, and there is a stop between 3.5 and 5.6. Very Happy Sharpness wise it looked identical to f5.6.

Looks like a very usable lens with if minor PP was applied. Very Happy
I think with a Sony Nex the results would be alot better, or if I could see better. Laughing

A light defuser or a light box would of made this test alot better. My biggest mistake in my opinion was using an older Quarter. The new Quarters have alot more detail on them.


PostPosted: Sun Oct 30, 2011 10:09 pm    Post subject: Reply with quote

Hollyhock shot at f5.6 minor pp standard sharpening.
Comments and Critiques are welcome.