Photographic Resources on the Web

[P3D Eric Goldstein <egoldste@xxxxxxxxxx>]

There's been some discussion recently about meters/exposure and 
calculating DOF as they relate to stereo photography.

For those on the list with access to the Web, I'd suggest a couple of 
resources to visit. The first is:

http://www.88.com/exposure/index.htm

This site deals exclusively with exposure. Much of the information is 
basic, but there are some interesting tidbits. Especially cool is the 
interactive java camera which demonstrates the consequences of exposure 
changes on the end product.

The second is:

http://oh114.wpi.edu/cgi-bin/htdof

The site contains an extremely useful DOF calculater. Your specify the 
focal length, aperture, distance, and circle of confusion criteria, and 
the calculater will give you a graph of the DOF (in metres). In addition 
to being a great practical aid, it is an interesting teaching tool to 
study how changes in the various parameters effect the final result.

If anyone does not have access to the web and would like a specific DOF 
plot generated and emailed to them (as a gif, tiff or jpeg), I'd be glad 
to help.


Eric G.
egoldste@xxxxxx


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