Comparison of the Vignetting Effects of Two Identical Fisheye Lenses

• DOI: 10.1582/leukos.2012.08.03.002
• Publication Date: 2019-11-07T09:23:34Z
• Authors: Coralie Cauwerts; Magali Bodart PhD; Arnaud Deneyer
• Keywords: Vignetting; Similarity (geometry); Field of view

High dynamic range (HDR) imaging techniques are increasingly used by lighting researchers in building applications to capture luminances the field of view. This paper deals with photometric calibration and more particularly vignetting effect correction, which is one steps necessary ensure reliable data. The effects four similar devices (two identical fisheye lenses successively mounted on two cameras) were first determined for several apertures. symmetry, noninfluence color target, similarity between evaluated root mean square error. Finally, mapping function lens was checked. study shows that filters device (a SIGMA 4.5 mm F2.8 a CANON 40D camera) can be reasonably other using photographic materials (that is, same brands models).