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12-16-2008, 01:15 PM   #1
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Join Date: Sep 2006
Location: Tartu, Estonia
Posts: 159
Focus adjust- maybe a stupid idea...

but worth a try...
Nature of a JPEG engine is a salviour I guess: more detail results in bigger filesize- so an idea grabbed from dpreview may have an alternative for 45 degree shooting. Easy and reproductable if You can:
1) Hang something like a regular newspaper on the wall;
2) Make sure that the targeting area with Your lens is smaller than (bracket) area with standard focusing screen (if desired grab Your marker to make a dot/crest);
3) Defocus manually and apply another correction;
4) Inspect Your images on Your computer (I personally use Pentax Remote 3 for convinience) and I am pretty sure that the biggest in filesize is the sharpest...
An adopted idea was gained from https://www.pentaxforums.com/forums/pentax-dslr-discussion/44206-dslr-focus-targets-testing.html and I liked and understood His approach :-)
Best and happy shooting, JR

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