From 94ec1a42eda46f912b63fcb0af6a4f84d71858f7 Mon Sep 17 00:00:00 2001 From: paolodepetrillo Date: Wed, 22 Nov 2023 23:25:01 -0500 Subject: [PATCH] Add note about conflicting TCA corrections. raw chromatic aberrations shifts pixels based on observed TCA in the image content, and then if it's also enabled, lens correction shifts pixels further based on a fixed model, resulting in an over-correction. --- content/module-reference/processing-modules/lens-correction.md | 2 ++ .../processing-modules/raw-chromatic-aberrations.md | 2 ++ 2 files changed, 4 insertions(+) diff --git a/content/module-reference/processing-modules/lens-correction.md b/content/module-reference/processing-modules/lens-correction.md index 840dcb439e..421b24f1da 100644 --- a/content/module-reference/processing-modules/lens-correction.md +++ b/content/module-reference/processing-modules/lens-correction.md @@ -12,6 +12,8 @@ Automatically correct for (or simulate) lens distortion, transverse chromatic ab You can choose to either use lens correction data embedded in your Raw file (where present/supported) or correction data provided by the external [lensfun library](https://lensfun.github.io/). +If TCA correction is enabled in this module, then [_raw chromatic aberrations_](./raw-chromatic-aberrations.md) should not also be enabled, as it will conflict. [_chromatic aberrations_](./chromatic-aberrations.md) may be used to correct any TCA that remains after this module's correction is applied. + # lensfun correction data If your system's lensfun library has no correction profile for the automatically identified camera/lens combination, the controls for the three photometric parameters (below) are replaced with a warning message. You may try to find the right profile yourself by searching for it in the menu. diff --git a/content/module-reference/processing-modules/raw-chromatic-aberrations.md b/content/module-reference/processing-modules/raw-chromatic-aberrations.md index 36438596b1..b18be6930c 100644 --- a/content/module-reference/processing-modules/raw-chromatic-aberrations.md +++ b/content/module-reference/processing-modules/raw-chromatic-aberrations.md @@ -14,6 +14,8 @@ This module currently only works for raw images recorded with a Bayer sensor (th The module will also not apply any corrections to any photos that have been identified as monochrome (see [developing monochrome images](../../guides-tutorials/monochrome.md) for more information). +If this module is enabled, then TCA correction in [_lens correction_](./lens-correction.md) should not also be enabled, as it will conflict. + # module controls iterations