----- Original Message -----
From: "Mike Ferguson" <mikeferguson@xxxxxxxxxxxxxxx>
To: <olympus@xxxxxxxxxxxxxxx>
Sent: Friday, 05 September, 2003 09:16 PM
Subject: Re: [OM] Shift lenses - was: Allow me to introduce myself...
> On 6/9/03 12:25 am, "Jeff Keller" <jrk_om@xxxxxxxxxxx> wrote:
>
> > The idea behind shift lenses is to let you keep the film parallel to
> > straight lines in the scene. Pine trees or buildings won't have their
> > tops pointing together when you point the lens up. (Or similarly with
> > horizontal lines when you point the lens to the side)
>
> Many thanks Jeff, Piers and John - the whole shift lens thing makes a lot
> more sense than it did. But, invevitably, I have another question.
>
> Am I right in thinking that what this lens lets you do is keep the camera
> level while shifting (there's a clue...) the image that is transmitted to
> the film plane - so, to use Jeff's example, you can point the camera at
the
> base of the trees and move the lens to see the tops?
I think that would be possible if the up / down shift of the front lens
element was large enough. With a view camera such would be possible. For
some excellent examples of view camera shift potential find a copy of the
"Kodak Professional Photoguide", an 8" x 5" 56 page ring binder booklet
containing all manner of dials and information. My copy is the sixth edition
1998, second printing 2000. There is a specific section, "View camera
perspective and depth-of-field controls" which contains numerous diagrams
from which shift lens potential becomes immediately obvious.
jh
>
> OK, I typed that and then went to have a read of the page Piers
> recommended...am now much wiser but, what the hell, will post anyway.
> There's always more you can learn, right?
>
> Mike
>
>
> < This message was delivered via the Olympus Mailing List >
> < For questions, mailto:owner-olympus@xxxxxxxxxxxxxxx >
> < Web Page: http://Zuiko.sls.bc.ca/swright/olympuslist.html >
>
< This message was delivered via the Olympus Mailing List >
< For questions, mailto:owner-olympus@xxxxxxxxxxxxxxx >
< Web Page: http://Zuiko.sls.bc.ca/swright/olympuslist.html >
|