P3D Stereo Base

["Andrea Blair" <asblair@xxxxxxxxxxx>]

>>>>Bruce Springsteen wrote (in part): While "don't worry, shoot happy" 
is a good way to avoid math anxiety,<<<<

If the avoidance of calculations and formulas is referred to as "math 
anxiety," then is the compulsion to have an exact formula called 
"creativity anxiety"?  {:>)  {:>)

>>>>it does have at least two possible drawbacks that I have noticed. It 
uses up more film for each resulting pair.<<<<

I don't think this is any different than bracketing for exposure. I know 
several (2-D) photographers that bracket a minimum of 3 times per shot. 
Hypothetically, that gives them a minimum 12 *perfect* images per roll. 
Personally, I'd rather be comfortable with my equipment's capabilities 
in different lighting situations and concentrate on composition and 
stereo effect. I very rarely bracket unless the lighting is very tricky 
and I am desperate and absolutely have to have that particular shot.

Are there any stereo photographers out there bracketing AND shooting 
multiple shots to obtain one stereo image?

My reason for shooting more than one shot is to intentionally have a 
choice. The same stereo base using the same lens and same lens to 
subject difference (no matter where you measure from) may not compliment 
all of the subjects photographed with these measurements. Subject, 
lighting, and composition all play an important role in how the final 
image will look. If you are 8 inches away from the subject, a 6mm 
separation may look great for a flower but a bug may look better at 
10mm.

This actually pertains to ALL stereo shots. At some point the guidelines 
are ignored and personal preference takes over. You may like 
hyperstereos, while someone else doesn't. I may like things coming 
through the window, while others don't. What we are searching for at any 
time is a guideline, not a rock solid rule. There seems to be many 
guidelines. Maybe the answer is to just pick one that you are 
comfortable with and use it consistently, varying in according to your 
style of photography.

Here's another theory I heard from one of the workshops participants 
that I had never heard of before:

Measure the distance from the camera to the subject in inches (can't 
remember if they specified where on the camera/lens). Move the camera 
horizontally the same number, but in millimeters (i.e. subject distance 
= 4 inches, move camera 4mm). Any thoughts?

Andrea S. Blair
asblair@xxxxxxxxxxx

p.s. It's nice to see that everyone has pretty much recovered from NSA 
and is joining the group again.

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