It is extremely difficult to correct a wide angle shot taken at an angle to straight geometric shapes, such as trees or buildings. Lens Corrections>Manual>Transform probably has all the tools, but in some photos it would take a computer to know which ones to apply and in what order. The Straighten Tool in the Crop panel is brilliant (and has been around in PS for years). Can we have something similar in Lens Corrections, where the user would draw a few straight lines in the image (essentially telling LR what's a building and what's a tree), and LR would attempt to apply the right Transforms to straighten the photo?
Posted 8 years ago
Ping, Employee
+1. It would be great if the perspective correction in LR would operate like the "keystone correction" feature of a well-known competitive product ;-)
Also, an aspect ratio slider would be nice, so one can stretch or shrink the image in one dimension only to get more natural proportions - the other product has this, too ;-)
P.S. As far as I understand, Lightroom already applies automatic aspect ratio corrections when using the perspective sliders. The corrections depend on the angle of field, i.e. on focal length in relation to sensor dimensions. That seems to work well - however, it would be nice to be able to tweak it a little bit.
Edit: To illustrate what I mean in the P.S. two pictures with exactly the same amount of manual correction (vertical=-93, horizontal=0, scaling=50). The first one at 12mm, the second one 135mm focal length, both on an APS-C camera. Note: This perspective correction is for test purposes only and makes no sense for the photos.
Clearly, LR applies a different aspect ratio depending on the focal length.
Also, an aspect ratio slider would be nice, so one can stretch or shrink the image in one dimension only to get more natural proportions - the other product has this, too ;-)
P.S. As far as I understand, Lightroom already applies automatic aspect ratio corrections when using the perspective sliders. The corrections depend on the angle of field, i.e. on focal length in relation to sensor dimensions. That seems to work well - however, it would be nice to be able to tweak it a little bit.
Edit: To illustrate what I mean in the P.S. two pictures with exactly the same amount of manual correction (vertical=-93, horizontal=0, scaling=50). The first one at 12mm, the second one 135mm focal length, both on an APS-C camera. Note: This perspective correction is for test purposes only and makes no sense for the photos.
Clearly, LR applies a different aspect ratio depending on the focal length.
