Patent ID: 9720206
Date: 2017-08-01
CPC Classifications: G02B,G03B,H04N

Claim:
1. A lens apparatus comprising: a magnification variator configured to move during magnification varying; a drive unit configured to drive the magnification variator; a detector configured to detect a position of the magnification variator; a deriving unit configured to derive a second drive signal to drive the drive unit based on: an information representing a relationship between a position of the magnification variator and a size of a field of view picked up through the lens apparatus; a position detected by the detector; and a first drive signal, wherein a field-of-view change rate obtained when the drive unit is driven based on the second drive signal is smaller than a field-of-view change rate obtained when the drive unit is driven based on the first drive signal; and a corrector configured to output position data in which a variation of speed of the magnification variator is smaller than that of position data based on the second drive signal, when the magnification variator is driven based on the second drive signal derived by the deriving unit.