P3D Re: ISO Super Duplex - Questions

[Shilo Teshima <is7s-tsm@xxxxxxxxxxxxxxx>]

Dr. George A. Themelis wrote:

>The two blades should define a square. But my camera only has one.  
>Can anyone verify how is the aperture controlled?

There are two blades in mine. 
They make a square and change continuously acording the aparture dial.

>Questions:  How many pairs should I expect to get from the 120
>roll?

Paul Talbot wrote,  
>If the two windows are about 30mm apart,
>it should work out nicely.  Just start with (1) in the first window;
>advance until (1) is in the second window to take the 2nd shot;
>advance until (2) is in the first window for the third shot, etc.

Exactly.
Generally speaking, you can take 24 pairs from a 120 roll.
Incidentally, Mr. Mikami, a member of our local stereo club takes 
30 pairs from it.
Using a ball-point pen, he marks a dot on the back of film each shot
THROUGH the first window.
He made a small hole at the top of the first window and
after the shot, winds film until the mark reach the center of the
second window(not the top of it). 
There is no space between pairs vertically. But you can get 30 pairs.

I'm not courageous to make a hole in my Duplex Super, though :-)

Shilo Teshima


-- 
Shilo Teshima   <stereographer from Planet16-16>
Osaka, Japan, the Earth, the Galaxy
shilo@xxxxxxxxxxxxxxxxx  
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