Keystoning is correcting converging verticals

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Keystoning is correcting converging verticals - Keystoning is correcting converging verticals

I popped this on a post where QC mentioned keystoning: I thought some illustrations of what to do in camera and using shift movements might help

There is a lot of talk about keystoning. You can correct in CO or LR/PS at the expensive of quite a lot of resolution being lost. You also need to allow room to the side of the subject to lose doing a keystone/perspective correction. This can be a bit of guess work.

Quality starts in camera. Managing your position and keeping your camera level...

Read more about this resource...
 
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Sometimes called the Tombstone effect :)
 
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Well presented, Steve.:plus1:
 
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"Excellent" presentation Steve.(y)

George.
 
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Great read. I always come across this when shooting in a wood. In the eagerness to capture as much of the tress as possible there's a tendency to angle the camera upwards. This then gives you look that they are all falling in on one another.
 
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Great read. I always come across this when shooting in a wood. In the eagerness to capture as much of the tress as possible there's a tendency to angle the camera upwards. This then gives you look that they are all falling in on one another.

There is. Using a PCE lens or even shooting portrait keeping the camera level on both planes will minimize this.
 
Never thought to spin and go portrait. It seems obvious now!
 
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Nice set of examples.
A rather cheaper option is to do a verticle stitch. And as you are adding a large number of pixes by adding images, you lose little if any quality compared to a shift lens.
But the identical stretching of the image can occur, if the viewpoint is too close, but can be corrected in some projections.
 
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Nice resource, with easy to understand examples. Thank for posting.
 
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