Definitions for "Varifocal lens"
Keywords:  focal, zoom, refocused, movable, lens
A camera lens in which the focus is not fixed and that can be adjusted either manually or automatically.
a lens which must be refocused whenever you change its focal length
A type of lens that enables a manual selection between two focal lengths, to give the desired picture view. A good option for customers, who are unsure of angle or distance, as it saves having to try multiple lenses.