DETERMINING LENS VIGNETTING WITH HDR TECHNIQUES
Axel Jacobs, Mike Wilson · 2007
High dynamic range (HDR) photography has seen a tremendous reception by hobbyist and professional photographers alike over the last few years. It has also developed into a cost-effective and flexible tool for the lighting engineer. Pictures taken with almost any digital consumer camera can be exposure-combined into HDR images. With a few simple steps, it is then possible to derive photometrically correct information from those images. This paper will demonstrate how HDR techniques themselves can be used to improve the accuracy to HDR images by determining the vignetting that is exhibited with wide-angle lenses.