A storage medium which stores correction data for obtaining a correction amount for correcting image data, obtained from an image formed by a lens apparatus, with respect to a distribution of a light amount in the image, wherein
- the lens apparatus satisfies inequalities
- 1.10<Ft/Fd<4.00;
- and
- −0.01<(Fd-Fw)/Log(Fd-Fw)<1.20,
- where Fw represents a minimum F-number at a wide angle end, Ft represents a minimum F-number at a telephoto end, fw represents a focal length at the wide angle end, ft represents a focal length at the telephoto end, and Fd represents a minimum F-number at a focal length fd expressed by an expression
- fd=Fw/Ft×ft,
- the correction data includes a coefficient of an n-th order polynomial (where n is a non-negative integer) with respect to an image height h, the coefficient corresponding to a state of the lens apparatus,
- the correction data satisfies in a range of the image height not lower than 0.1 times a maximum image height and not higher than 0.8 times the maximum image height, and does not satisfy in at least a part in a range of the image height higher than 0.8 times the maximum image height
- −0.15≤dD′(h)-dDlens(h)≤1.98,
- where dDlens(h) represents a gradient of the light amount at the image height h, and dD′(h) represents a gradient of an inverse of a value of the n-th order polynomial at the image height h.