#photography nerdity:For much of my architectural work especially, I often create high resolution "stitched" composites made of multiple captures of different parts of the subject.Modern image software (like Capture One and Photoshop) make this fairly easy and seamless, but the technique and equipment you use to create the individual captures can have a significant impact on the quality of the result. The main idea is require the software do as little geometric work as possible.1/

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[–] [S] 1 point 1 year ago (13 children)

The 35mm shifting lenses aren't absolutely theoretically ideal for this, because they generally shift the lens rather than the sensor when the camera mounted on a tripod. But the change of perspective between captures is very small, and barely an issue in the final result. And they provide a much less expensive alternative to a full technical camera system.If this sounds fun, I suggest renting a shifting lens and playing around with the technique.10/10

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  • [–] 1 point 1 year ago (6 children)

    @mattblaze On a technical camera can’t you also move the plane of the lens as well as the back, to effect the shift. Are there advantages or disadvantages to moving, one or the other or both?

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  • [–] [S] 1 point 1 year ago (5 children)

    @Sc0tty generally you want to move the back to avoid disturbing the perspective. But, depending on the camera, you can move either, often in opposite directions, to achieve a greater amount of shift.

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  • [–] 1 point 1 year ago (4 children)

    @mattblaze Thanks now you’ve said it, that makes sense. Otherwise could get very ‘slinky’ !

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  • [–] [S] 1 point 1 year ago (3 children)

    @Sc0tty now, I should also mention tilt, another movement in which you move the lens and the sensor planes out of parallel alignment, to control focus. There, the general rule is to shift at the rear, and tilt at the front.

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  • [–] 1 point 1 year ago (2 children)

    @mattblaze Presumably then that would allow for ‘corrections’ to compensate for non optimal camera position

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  • [–] [S] 1 point 1 year ago (2 children)

    Related: Shift is also (more often) used to maintain geometric accuracy in certain subjects even in non-stitched images. It's the secret weapon of architectural photography. Here's a little thread I did on it a while back.federate.social/@mattblaze/112

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  • [–] [S] 1 point 1 year ago

    Also, whenI use the term “quality” here, I’m using it a strictly technical sense to refer to the fidelity of the image, not the aesthetic qualities of the image. I very much dislike this usage, but it’s fairly standard in discussing this stuff.

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  • @mattblaze Thanks for the great thread!During my conscription (in 1980) I learned by myself how to use the Linhof 8×10" of the military school, without any clue, just making experiments.But since film was expensive, I often had to resort to thin tracing paper :blobfacepalm: on the film plate to make correct drawings of devices for manuals (to make them was my "official" duty).

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