Vignetting artefacts by RAW mode

[Mikhail Prokopenko]

Hi, PTgui World!

I stitch RAW pano and have an issue with my SONY DSC RX10M IV camera at 24mm: the source files have severe distortion and vignetting. PTGui handles the distortion but not the vignetting. As a result, black artifacts appear in the resulting panorama. Can I fix this problem in PTGui, or do I need external tools?
Project files you can find at https://drive.google.com/file/d/1A1x_zhq107FyrzKwUbtaMIHjdXi3JKSn/view?usp=sharing

[John Houghton]

Mikhail,  I am unable to identify any "black artifacts" in your image, other than the black corners, which should be eliminated with the mask tool.  I do see chromatic aberration and parallax issues.  The setup of your panorama head should be improved to rotate the camera about the no-parallax point.  The chromatic aberration can be corrected on the RAW Pre process tab.

John

[Mikhail Prokopenko]

Hi, John

Thanks for the prompt replay.

This is hand-held pano and that is an issue, I guess.

By "artifact" I meant the dark "outer" corners (see upper left pano corner below). I believe such problems because of  camera positioning during shooting. In this case, vignetting at the outer corners remains, while PTGui handles vignetting at the inner corners of the frame correctly.

среда, 10 июня 2026 г. в 13:56:42 UTC+3, John Houghton: