Remote Focus And Zoom

How remote focus and zoom works?

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*** ****** *** * ********* ********* **** ********* ** **. Instead ** *** **** ****** ********** ***** *** *** ******, there *** ****** **** ************** ******* *** ***********. ***** *** control (********, *** ****, ***.), *** *** **** ********** *** zoom ****** ** *** ******. ****, ***** ** ******* ***** that ****** **** ******* ** *** **** ** ****** ***** (front ** **** *****). **** ****** *** ** ****** **** changes **** *** **** ***** **. ******** ******* ** **** a ***** ** **** *******.

**** ******* *** **** * ****** ** *** ***** *****, where *** ****** ***** *** ******* *****, ***. ********* *** megapixel *******. **** ******** *** ***** **** ******** **** *** put *** ***** **.

****** ******* ***** *** ** ******** *** **** *** ** motorized ****** ** ******* ******* * ***** ** *** ****** changes *** *****.

(*'** *** ** **** * ***** ******* ******* *** ********** via *** ******* *** ** ** ****** **** ****** ***** & **** ********).