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Re: [photo-3d] The jig's up


  • From: Linda Nygren <lnygren@xxxxxxx>
  • Subject: Re: [photo-3d] The jig's up
  • Date: Tue, 21 Mar 2000 10:52:54 +0000

From: Linda Nygren <lnygren@xxxxxxx>

I was also going to reply earlier that I too have a tilt to quite a few of
my Realist shots ( I think that must just be the way I look at the world),
but that I notice it most often with seashore and lake shots (e.g. in the
Boundary Waters). Most recently I was shooting some pelican and snowy egret
shots at the beach in Florida, and most of these needed to have rotational
correction when mounted. I usually put them in Spicers if they need much
rotational correction,although one can always use RBT's without the little
sprocket guides in the grooves and just tape the chips in, as I do if I plan
to project the images. I correct the rotation by eye (with review in an Red
Button) rather than using a gauge, but probably the gauge would help if I
can get used to using one. Probably most of my shots have a bit of a tilt to
them, but it is not always as obvious. The ground may not in reality be
perfectly horizontal, after all, but the water surface gives too strong a
cue, as George says. The jigs would be most helpful for "routine" shots that
don't require this correction, of course, and speed up the general mounting
process so that you have time to tweak the ones that need it, adjust the
window on closer up shots etc.

"Dr. George A. Themelis" wrote:

> From: "Dr. George A. Themelis" <drt-3d@xxxxxxx>
>
> Ken Luker brought up a few interesting points... To
> summarize his thoughts, he is saying that instead of
> using an inflexible jig, he prefers to use a mounting
> gauge and use the lines in this gauge to rotate the chips
> to correct any unintentional tilt in his pictures, which,
> he says, happens quite often,
>
> I am rather surprised to hear that this happens often.
> Unless if he shoots most of his pictures by the sea shore
> (while taking pictures of the sea shells) it is not common
> to have pictures where a clear horizon or other "alignment"
> clues are present.
>



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