Zoom lens driving apparatus

摘要: A zoom lens driving apparatus always detects a position of an image magnification varying section, and drives the section in accordance with preset relationship between speed such manner that becomes higher on one side, where focal length corresponding to is small, than another side large. Accordingly, amount shift, which inner focusing system would otherwise abruptly increase increasing length, significantly suppressed, so auto focus adjusting mechanism or correcting device effective during zooming, provided lens, can function satisfactorily as follow shift whereby control superior response be achieved.