The effect is most noticeable when you use widely disparate focal
length lenses and swap between them often. I noticed it when I saw
irregular frame sizing/spaces on a couple of rolls of film shot with
my Leica M ... that weekend I was carrying the Summicron-M 35mm,
Heliar 15mm and Elmarit-M 90mm lenses. Between the 15 and 90mm lenses
the frame size was almost 3mm different on the negatives.
Godfrey
On Nov 4, 2005, at 1:12 PM, Shel Belinkoff wrote:
I never heard that before. I'll have to give it a test and see for
myself.
You're just a font of information on so many subjects relating to
photography!
Shel
"You meet the nicest people with a Pentax"
[Original Message]
From: Godfrey DiGiorgi
Frame spacing with an interchangeable lens camera can vary a little
bit when you go from a telephoto to a wide lens. This is because a
wide lens will "overshoot" the format gate a little bit due to the
angle that the light path is taking. If you measure the actual
exposed area, between wide and tele lenses there can be as much as
2.5-3.0mm difference in the dimensions of the format, depending on
how extreme a wide angle lens you use.
