Re: lens coverage, selection, cost.. was why Re: actual vs ratio sizes

[IAPPPresident@xxxxxxx]

One of the nice things about the V-Pan is WYSIWYG:  What you see is what you 
get.  There is nothing sacred about 6 x 17.  If you look on the viewing 
screen you may discover that the image circle is smaller than what you hoped 
for, but the image works and you have only to do a little cropping.  Chet 
Hanchett himself suggested putting some little black boards on the sides of 
the film magazine to crop to 6 x 12, and there's nothing sacred about 6 x 12, 
either.  And don't forget, the image circle thrown by the lens may just cover 
the 6 x 17 format, but sometimes you want to shift the lens, and then the 
bigger the image circle, the more room you have for shifts.  Chet recommends 
an image circle of 200 mm for full coverage of the V-Pan frame.  There have 
been times when shift was more important to me than frame size - so I just 
shifted the lens, and later cropped the edges straight.  

Liz Hymans

In a message dated 4/3/00 4:27:31 PM Pacific Daylight Time, 
evphoto@xxxxxxxxxx writes:

<<  As soon as I find a mm ruler I'll send you specs for my
 V-Pan mark III. Do you want the film gate diagonal as well. You of
 course are aware that published specs for image circles are often
 conservative. And are talking about the older 90 mm f/6.8 Angulon or the
 current or original version of 90 mm f/6.8 Super Angulon? Three
 different lenses with different specs. >>