Improve Capture One
Request a new feature, or support for a camera/lens that you would like to use in Capture One.
Request a new feature, or support for a camera/lens that you would like to use in Capture One.
A shift lens might have max 12mm shift. With 24mm tall sensor (in landscape orientation) this would place the horizon the the edge of the image (when camera is horizontal). More typically the shift would be 8-10mm. If the shift lens has 17mm focal length I can easily cover the same field of view without shift using about 15-16mm lens + some rotation + keystone correction + cropping.
For some reason C1 has limited the max keystone correction to 75 (of what?) + Amount that goes to 120%. This doesn't cover all cases where the required crop is still reasonable, especially if I am happy to change the crop aspect ratio (I will lose some pixels and some pixels will become stretched but that's okay). The math for keystone doesn't change with bigger corrections, and other tools don't set this low arbitrary limit, so this seems to be just a decision to change the limit (and if there's any fear of image quality dropping with high values then let me decide if I am happy with the result).
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Current workaround
Oddly enough, setting something like -22mm shift on the lens Correction - Movement tab will affect how the keystone correction is calculated. This can be used to force beyond max correction, but then lens distortion and vignette corrections won't work. Keystone tool Aspect also needs tuning if this trick is used. |
