The Canon 25-250mm is a compact and sharp 4K S35 servo zoom with a built-in 1.5x extender and 10x zoom range.

The lens has a constant aperture between 25-187mm of T2.95 and from 187-250mm, the lens gradually decreases to T3.95.

With the built-in 1.5x extender, the lens covers a Full Frame sensor and becomes a 37.5-375mm lens with a T4.4-5.9 aperture.

The servo unit has three built-in motors for focus, zoom, and iris control and can be linked to Canon zoom and focus demands for controlling zoom and/or focus from a tripod.