Re: [tech-3d] Re: Stereo Base Calculation With a $20.00 Handheld

[boris@xxxxxxxxxxxx]

Mike:

you wrote in response to Allan Griffin:

>Your assumption suggests you are convinced that a fixed separation camera
>satisfies your requirements for "mid-field" subjects.  I personally don't
>find this approach satisfying, but let's agree to respect each other's

I also have started using variable bases for the mid range, in particular
to make my anaglyphs work better.  I used to shoot just close up ortho
(using the 1/10 rule! not that it ever existed), but as I have broadened my
subject matter, so have my methods and my stereobase.  So far I have used
just my intuition, but I have longed for a math/calculator tool for some
time.

To Allans challenge:
>>At the end of this unduly long adventure into so called simple math, you.
...
>>would be appreciated if you were to back it up with practical stereo pairs
>>demonstrating the statements made and post such on a website to which we

Mike responds:
>Allan, your challenge will go unrequited.  I don't have a scanner.  I don't
...
>handle the calculations in the field and I suspect my intended audience
>(those who don't use fixed-base cameras) would enjoy trying it.

As a member of Mike's intended audience I will add my comments (risking a
foray into aesthetics).  Allan Griffin does have a few stereo pairs on the
web, I think.  Perhaps, Allan you could offer them up to us for inspection?
I have seen some of Allan's work, and to my tastes some of it looks a bit
flat.  (Although it is excellent in other ways)  This may in part explain
his befuddled position with respect to the point of Mike's article.

Mike writes:
>someone willing to critique the technical aspects of my article.

I am not going to try to critique it technically/mathematically (It's been
too long since HS algebra/geometry), but I look forward to programming my
HP-15c one of these days and putting the equation to the test.  Given its
flexibility (i.e. % of MAOFD variable input) and assuming it works I look
forward to its utility.  Can I put in MORE than 100% MAOFD?  I am an
incorrigible depth demon.  Can Mike help me re-write the program to take
on-film-deviation (in mm) directly as an input, with base as the output?

Boris

________________________________________________________________________
Boris Starosta, 3d artist             boris@xxxxxxxxxxxx
Dynamic Symmetry, LLC                 http://www.starosta.com
usa - 804 979 3930                    http://www.starosta.com/3dshowcase

Currently showing at The Observatory. Info: ...3dshowcase/technobot.html



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