P3D Re P3D Math-LESS solution for Realist close-ups

[aifxtony@xxxxxxxxxxxxx (Tony Alderson)]

>Tom Deering wrote:
>I took a stunning picture this summer that was a failure.
(...)
This slide had too much depth. I've designed a simple tool to help me avoid
thissituation in the future.<


Gee, what's wrong with the DOF scale? Just keep within the f8 marks.  (f5.6
if you're conservative.)


>It solves something that always confused me. The 1/30 rule says my Realist
>can't shoot anything closer than 7 feet, but the camera can be focused
>down to 2.5 feet. Photos I've taken with close objects were sometimes
>viewable, and sometimes not, for a reason I couldn't explain. <


Not exactly.  The near limit for the Realist is 7 feet if your background
reaches to infinity (or thereabouts).  Except, of course, for objects that
properly come thru the window, to a moderate distance.  If you shoot closer
than 7 feet, you need to restrict your background.  This is what the medium
and close-up masks were all about.

You might be able to "save" this slide, at least for the hand viewer, by
remounting using double-depth.  This is fairly laborious, but you seem to
appreciate challenges.

Tony Alderson
aifxtony@xxxxxxxxxxxxx




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