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Re: Inverted Noblex?
- From: Garet Denise <garet@xxxxxxx>
- Subject: Re: Inverted Noblex?
- Date: Mon, 21 Feb 2000 16:21:45 -0700
-----Original Message-----
From: James Romeo
>This still has nothing to do with the camera upside down
>or lowered it is still the same end . The camera must be
>level.
James, perhaps this will help.
Without shift the only way to get the horizon away from the middle of the
frame is to tilt the camera up or down. But if the camera is tilted you
will get distortion of vertical lines (true with any camera, panoramic or
otherwise). This is why Noblex (and others) have offered lens shift....
the camera stays level, but the image is shifted above the horizon. The
Noblex will only shift up, not down. Wonderful if you want pictures of the
upper parts of buildinging or trees in a forest. Not so wonderful if you
want to take pictures looking down into a canyon. Thus the need to invert
the camera.
You also wrote:
>If I am using my view camera and I shift the lens or
>lower or rise the tripod again it is the same end.
No, this is not true. Look at any book on view camera techniques.
Perspective of vertical lines is controled by orientation of the film plane
(as mentioned above, it must be kept vertical to prevent distortion of
vertical lines). Shift of the lens controls which part of the image circle
from the lens is projected onto the film plane, allowing you to keep the
film plane vertical, and yet have the center of the picture be above (or
below) the horizon.
Garet Denise
garet@xxxxxxx
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