T3D Thanks for taking the time to help!

[Dogbreath <hopi@xxxxxxxxxx>]

Thanks to all of you who responded to my tech questions! That was a huge
help! I'm very busy just now, but, rest assured, I will respond properly to
each of you as soon as I can.

DB


>Date: Wed, 16 Jun 1999 09:57:20 -0400
>From: boris@xxxxxxxxxxxx (Boris Starosta)
>To: tech-3d@xxxxxxxxxxxxxxxxx
>Subject: T3D Re: TECH-3D digest 505
>Message-ID: <v01530502b38d5ad2fd94@[207.69.18.99]>
>Mime-Version: 1.0
>Content-Type: text/plain; charset="us-ascii"
>
>>From: Dogbreath <hopi@xxxxxxxxxx>
>...
>>If I'm shooting a flower from, say, 200mm away (macro) with a 35mm SLR
>>equippied with a 50mm lens, what adjustment should I make to my stereo base
>>(my calculations put it at 4mm) and/or my base when mounting to create the
>
>This is going to be a non technical reply on the tech list.  Sorry about
>that.  I do not use any calculations at all, just shoot by the "seat of my
>pants."
>
>First of all when shooting with a slide bar, you can always take a series
>of three or four exposures, stepping along the rail, giving you a variety
>of separations to choose from after processing.  It's educational!
>
>I just started with some mild macrophotography, as you describe it above,
>and I pretty much am sticking to my 1/10 rule!  Your four millimeter
>stereobase above would not give you much depth, I think, unless the flower
>is really big!
>
>Six inches away from your camera (200mm), I say give it about two to three
>cm of stereobase.  (I would shoot three exposures.  Imagine your slide rail
>has a little mm ruler on it: shoot 1. at 0mm, 2. at 20mm, and 3.at 30mm
>along the rail.  This gives you three slides with three possible
>stereobases to choose from: 20mm, 10mm, and 30mm.)
>
>I'm assuming a smallish flower - maybe one inch across/deep.
>
>Adherence to the 1/30 rule is the cause of more flat stereos than I care to
>think about.  Ruins a lot of potentially really great stereo shots.
>
>Boris
>
>Boris Starosta            boris@xxxxxxxxxxxx
>                          http://www.starosta.com
>usa 804 979 3930          http://www.starosta.com/3dshowcase




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End of TECH-3D Digest 507
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