Excellent optics and high performance, providing an ultra-wide angle of view in a compact, portable package, perfect for EOS R cameras with an APS-C sensor. The optical performance is a direct result of a totally new lens design, highlighted by two Ultra-low Dispersion glass elements and an Aspheric element. This lens delivers reliable, speedy and quiet wide-angle performance, making it an ideal lens for vlogging, video, travel, landscapes, interiors, or simply for creative imagery.
Features

Ultra-wide-angle Lens
The RF-S10-18mm F4.5-6.3 IS STM lens' wide coverage picks up right where the RF-S standard zooms leave off, at 18mm, and from there it widens to true ultra-wide coverage at its 10mm focal length. This ultra-wide-angle 10-18mm (16-29mm equivalent) is great for shooting in tight spaces where stepping back is difficult such as vehicles and small rooms, or for landscape, travel, and more.

Wide Angle of View for Selfies and Vlogging
With a wide angle of view for easy shooting indoors, and a compact, lightweight design for comfort when filming while out and about, this lens allows you to enjoy taking selfies or vlogging no matter where you're shooting.

Outstanding Image Quality
Features a new lens design optimized for short back focus with two Ultra-Low Dispersion glass elements and an Aspheric element which achieves high image quality throughout the image from center to the edges while maintaining compactness.

Get Up Close
Capture subjects in large detail with a maximum magnification of 0.23x in AF mode (focusing down to 5.5 inches), and 0.5x in MF mode. This enables richly expressive close-up shots using the wide angle of view and bokeh an ultra-wide-angle lens can provide.

Optical Image Stabilization — Up to 4.0 stops of Shake Correction
To shoot with less blur even without a tripod handy, the RF-S10-18mm F4.5-6.3 IS STM features built-in Optical Image Stabilization, providing up to 4.0 stops of shake reduction even for night shots. When paired with an EOS R-series camera that has In-Body Image Stabilization (IBIS), the Coordinated IS allows for up to 6.0 stops (2) of correction. This makes hand-held video, travel photography, or even taking everyday shots convenient with less equipment to carry.

High-speed, Smooth and Quiet Autofocus
The lens features a leadscrew-type STM focus drive system which provides smoother and more natural movie AF. Plus, it supports focus breathing correction (3), in which the camera digitally corrects for changes in angle of view caused by focus movement during video recording.

Compact and Lightweight
At approximately 5.3 ounces (150g), the RF-S10-18mm F4.5-6.3 IS STM is extremely lightweight and compact. The lens also features a lens-retraction mechanism that works without a switch, allowing it to be stored compactly simply by turning the zoom ring for outstanding portability.