1. An optical apparatus comprising: a first image blurring correction unit configured to correct image blurring by moving a first image blurring correction lens; a second image blurring correction unit configured to correct image blurring by moving a second image blurring correction lens; a blurring detection unit configured to detect blurring applied to the optical apparatus; and a motion vector calculation unit configured to calculate a motion vector between a plurality of images shot by the optical apparatus, wherein the first image blurring correction unit is capable of correcting image blurring in accordance with a blurring signal detected by the blurring detection unit; and the second image blurring correction unit is capable of correcting image blurring in accordance with a motion vector signal the motion vector signal calculated using a plurality of images of which image blurring has been corrected by the first image blurring correction unit.