PS Perspective, Distort and Skew versus View Camera controls

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Q. PS Perspective, Distort and Skew versus View Camera controls

Asked by Antonio Cardoso (K=479) on 7/23/2003

Are those PS tools good substitutes for some of View Cameras front and back adjustments?
I know they wouldn't make for DOF optimization but would they make some of those view camera exclusiv features less important in the future?
I'm a little confused about it.
Antonio

David Goldfarb (K=7611) - Comment Date 7/23/2003

Perspective control in PS can substitute for rear swing and tilt, but with some loss of quality. If you start with a big enough file for your purposes, that loss may be unimportant. Rear swing and tilt or PS perspective control can only correct distortion in a single plane. If you need more than one plane to be perfectly square, then the camera needs to be level, and you either need rise/fall and/or shift, or you need a lens wide enough for you to photograph the entire scene and you can crop the excess.

PS can't convincingly replace control of the plane of focus (usually accomplished with front tilt and swing), or rise, fall, and shift movements on the front or rear standard, unless you consider shooting with a wide lens and cropping an acceptible substitution for rise/fall/shift, which it may be, again, if the original file is big enough.

David Goldfarb (K=7611) - Comment Date 7/23/2003

Another way of thinking about it is--PS perspective control can't do anything that couldn't be done in the darkroom by tilting the enlarging easel.

Antonio Cardoso (K=479) - Comment Date 7/24/2003

David,
Thanks very much for the very clear answers to my question.
Regards,
Antonio

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