The Kodak Enigma

[P3D <jeffjess@xxxxxxx>]

Did anyone else have the same reaction to the Kodak focusing 
article in the latest Inside 3-D that I had. Seems to me 
that getting the camera in perfect focus at 15 feet with a 
ground glass, and then moving the focusing scale so it shows 
a distance of 10 feet is a strange solution to any focusing 
problem. When I set the distance to 10 feet, I want the best 
focus to be at 10 feet, not 15!!! 

It would seen to me the problem is either:

1. The camera lenses have not been focused properly.

2. The allowable circle of confusion was too big when the 
depth of field scale was designed for the Kodak. Which means 
that the focus at infinity will not be good enough to 
satisfy most people when using the dof scale and setting the 
hyperfocal distance. (Kodak's dof scale is much less 
conservative than the dof on other cameras I own.)

3. The actual focusing scale on the Kodak is calibrated 
wrong. (Thats the only way I can see that after moving the 
scale to 9 or 10 feet while focused at 15 feet, the camera 
would still focus properly at 4 feet!)

If #2 is the problem, as I suspect, then wouldn't a better 
solution be to use 1 or 2 f-stops lower than your actual 
setting when setting the hyperfocal distance? 

If this article is as far off base as it seems to me, it is 
a great disservice to the reader. 

Comments?

Jeff Jessee


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