A zoom tracking method for digital camera is disclosed. The method comprises storing a position table comprising data of several zoom position curves respect to positions of a focus lens and move the focus lens position by looking up said position table while moving a zoom lens position. The curves are divided into a first linear region, a second linear region and a nonlinear region to reduce the table size while still achieving good image quality.

 
Web www.patentalert.com

< Automatic focusing apparatus and optical instrument including automatic focusing apparatus

> Focus detection method and focus detection apparatus

> Object determining device and imaging apparatus

~ 00514