On your first set of test images I think f/5 is the best (based on the
rectangular "flag" hanging out at top left). But it is difficult to
tell the difference between f/4 and f/6.3. I think some fall-off is
evident by f/7.1 and it becomes really evident at f/8.
Your second test image in that page (the cell phone tower) is harder to
evaluate. The test area is much larger and composed of straight lines.
The eye/brain connection has a special ability to make straight lines
in the brain even where they don't exist. It's a tough target to evaluate.
But I do really like your B&W shots in the third test page, especially
the one with the tree in the center.
Chuck Norcutt
On 8/5/2012 5:55 PM, Ken Norton wrote:
> Since Chuck mentioned the Minolta A1, here is a REAL-WORLD test.
>
> http://www.image66media.com/page18.html
>
> And some FAKE-WORLD tests:
>
> http://www.image66media.com/page12.html
>
> And a few sample images from back when I first got the camera:
>
> http://www.image66media.com/page9.html
>
> And don't forget the DoF tables with a cute sample picture at the bottom:
>
> http://www.image66media.com/page19.html
>
> AG
>
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