Create lens calibration data for lensfun

Thu, 15 Nov 2018 08:00:00 -0500

[Article updated on: 2019-12-09]

Introduction

All photographic lenses have several types of errors. Three of them can be corrected by software almost losslessly: distortion , transverse chromatic aberration (TCA) , and vignetting . The Lensfun library provides code to do these corrections. Lensfun is not used by the photographer directly. Instead, it is used by a photo raw development software such as darktable or RawTherapee. For example, if you import a RAW into darktable, darktable detects the lens model, focal length, aperture and focal distance used for the picture, and it then calls Lensfun to automatically correct the photograph.

Vignetting on PIXLS.US

Create lens calibration data for lensfun

Introduction