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echo: photo
to: LARRY BOLCH
from: HAP NEWSOM
date: 1998-04-12 14:36:00
subject: Re: Mard Gras (Larry B)

Good Morning Larry!
LB>HN> MK>Older view camera lenses are measured in inches as that was the
LB>HN> MK>standard. 8" is a 210mm, a 'normal' for 4x5. So this would be 
round
LB>HN> MK>400mm lens. Depending on what size camera you put it on, it's 
ither
LB>HN> MK>normal, or a slight telephoto.
LB>HN>
LB>HN>
LB>HN> I thought a 127 or 135mm lens was normal for 4X5. Are you sure on the
LB>HN> 210mm? I've been told that is a short tele for 4X5.
LB>A 127mm - 135mm would be the rough equivalent to a 35mm lens on a
LB>35mm camera - wide normal. A 210 would be a slightly long normal
LB>like a 55mm lens on a 35mm camera. The actual normal lens would
LB>be about 160mm or about 6.4".
LB>A 43mm lens is actually the mathematical "normal" focal length on
LB>a 35. If I remember correctly, going to 50mm lenses made it cheaper
LB>to make a normal lens that would allow the mirror to swing up on
LB>an Exacta, and the tradition has continued. For the most part, even
LB>Leica - with no mirror - made mostly 35mm and 50mm normal lenses.
LB>One a little short, and the other a bit long.
Arrrrgh! I'm not getting the answers I wanna get ! my guesses are all
coming up wrong!
LB>larry!
LB>... I'm too sexy for my Nikon, too sexy for my Linhof...
Well I'm not, so send 'em down to me...and the widelux, and the hassy
  too while you're at it!
chat with you soon!
hap
 * SLMR 2.1a * I calls em as I sees em, if I don't see em I make em up!
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