Canon EF 100-400mm f/4.5-5.6L IS II USM DSLR Telephoto Zoom Lens

1 Super UD (Ultra-low Dispersion) element

Advanced optical design to suppress chromatic aberration and deliver high image quality across the entire zoom range

ASC (Air Sphere Coating) technology to significantly reduce flare and ghosting by applying a coating of microscopic air spheres on the lens surface, especially effective against near-vertical incident light reflections

Fluorine coating for dirt and smudge resistance

Ring-type Ultrasonic Motor (USM) for fast, quiet, and precise autofocus

Full-time manual focus override

Rear focusing system

Focus ring rotation angle approximately 95° for quick composition adjustments

Weather-sealed construction with dust and drip resistance

Durable zoom mechanism with adjustable zoom ring torque settings

Included lens hood with filter operation window for easy filter adjustments without removing the hood

Tripod collar with quick-release mechanism allowing removal of the camera body without detaching the collar, facilitating quick switch between tripod and handheld shooting

While the lens has some weather resistance, avoid exposure to heavy rain or moisture

When using a PL-C circular polarizing filter, the lens hood must be removed, and the filter operation window should be closed during shooting