The User's Review: Kiron 80-200mm 4.5 Macro Zoom Lens with a Zoomlock

The zoomlock is a unique feature on this zoom. The lock can hold the zoom ring at several pre-set locations in the zoom range. but not any position across the zoom course.

This Macro Zoom lens can be found with various lens mounts.

Hold the lock switch backward, and mover the zoom ring. When hear a click, release the switch to lock. To unlock, push the switch forward and move the zoom ring.