Re: [photo-3d] projectors/2x2/R-format/stereo window

["David W. Kesner" <drdave@xxxxxxxxxx>]

Mike Kersenbrock writes:

> Keep in mind that I'm of the opinion that one can get away with murder
> when looking at stereo slides in a viewer -- while others gag if the
> closest-in thing is as far as 6-inches behind the window.

Two things here:

1) It is much easier to see mounting errors in a handviewer 
than in projection. I agree that many people are not bothered 
by these errors, but that is different than detecting them. 
The only reason that many people find them less tolerable or 
more "easily" detected in projection is that it magnifies the 
problem.

2) Correct me if I am wrong, but you seem to be concentrating 
on the window problem as being when the whole scene is behind 
the window. This is not what is happening when images are 
mounted with infinity seperation. What happens there is the 
whole scene is in FRONT of the window. It is the farest object 
that is set at the window.

Now as long as we are stating opinions *{;-) mine is that any 
mounting error is intolerable. Especially when there is 
absolutely no reason for it. Everyone has the ability to mount 
perfectly.

It is hard enough to promote stereo photography with good 
images, but when poor images or improperly mounted images are 
being used to show to the public it really hurts us all. If 
all you are going to do is take images for your own pleasure, 
then by all means do whatever statisfies you. If you are ever 
going to use your images to show the public, then you owe it 
to us all to do so only with properly mounted images.

These opinions were aimed at everyone in general and not at 
you personally Mike. You have already stated that you do 
remount ones that you put in projected shows.

As far as the preset window in RBT's I guess I will have to 
check with Jon again. I know that 65mm A models (like mine) do 
have a set window. Maybe the 75mm B models don't. It won't be 
the first time I have been wrong *{;-)

That's all for now,

David W. Kesner
Boise, Idaho, USA
drdave@xxxxxxxxxx