VIGNETTING DATA CALCULATION DEVICE, IMAGE CAPTURING APPARATUS, AND METHOD OF OPERATING THE VIGNETTING DATA CALCULATION DEVICE

摘要

PPROBLEM TO BE SOLVED: To provide a technology capable of achieving shading correction according to an actual opening degree of an aperture when using only a vignetting data in opening the aperture. PSOLUTION: A vignetting data calculation device includes: a lens data acquisition unit 111 for acquiring the vignetting data on an optical system when the aperture 32 is opened; a detection means for detecting the opening degree of the aperture 32; and a vignetting data calculation unit 120 for calculating the vignetting data on the opening degree of the aperture, based on a detected opening degree of the aperture and the vignetting data in opening the aperture 32. PCOPYRIGHT: (C)2011,JPO&INPIT