Canon RF-S 18-150mm f/3.5-6.3 IS STM Lens

The Canon RF-S 18-150mm f/3.5-6.3 IS STM Lens is a compact, versatile all-in-one zoom lens designed for Canon’s APS-C-format EOS R Series mirrorless cameras, well suited to travel, wildlife, and light macro photography. Covering an 8.33x zoom ratio, it delivers a 29-240mm 35mm-equivalent focal range, giving photographers reach spanning everyday wide-angle shooting through substantial telephoto on a single, lightweight optic.

Optically, the lens covers an 18-150mm focal range with a variable maximum aperture of f/3.5 at the wide end narrowing to f/6.3 at full telephoto. The 17-element, 13-group optical design includes one UD (ultra-low dispersion) element and two aspherical elements, along with Canon’s Super Spectra coating to help minimize ghosting and flare, and a rounded 7-blade diaphragm contributes to the lens’s background rendering.

Autofocus is handled by a leadscrew-type STM (stepping motor), delivering smooth, quiet autofocus well suited to both stills and video, with full-time manual focus available even while in AF mode via a narrow, fly-by-wire focus ring. The lens includes a combined Focusing/Control Ring, letting photographers manually focus or assign the ring to adjust settings like ISO, aperture, or exposure compensation. Canon’s Optical Image Stabilizer provides up to 4.5 stops of shake correction on its own, extending to up to 7 stops when paired with a compatible camera body’s in-body stabilization via Coordinated Control IS.

A standout feature is the lens’s close-focusing capability, with a minimum autofocus distance of 0.17m (18-35mm) extending to 0.45m at 150mm, yielding a maximum magnification of 0.2-0.36x depending on focal length in AF mode. A Center Focus Macro function available in manual focus mode pushes magnification up to 0.44-0.59x, letting photographers capture close-up detail shots without a dedicated macro lens.

Build quality centers on a compact, lightweight design measuring approximately 69 x 84.5-127mm and weighing approximately 305-310g, with an internal, non-extending focus mechanism (rotary extending zoom design) and a 55mm filter thread. The lens is not listed with fluorine coating and should be handled with standard care in wet conditions.

As an APS-C-specific lens, the Canon RF-S 18-150mm f/3.5-6.3 IS STM is designed for Canon’s APS-C RF-mount mirrorless cameras, though it remains physically compatible with Canon’s full-frame RF-mount bodies, where a 1.6x crop is automatically applied.

Key Features
– 18-150mm all-in-one zoom (8.33x) for Canon RF-S mount (APS-C)
– Approximately 29-240mm full-frame-equivalent field of view
– Maximum aperture f/3.5-6.3 (variable)
– 17 elements in 13 groups, including 1 UD element and 2 aspherical elements
– Super Spectra coating
– Leadscrew-type STM autofocus with full-time manual focus
– Combined Focusing/Control Ring
– Optical Image Stabilizer, up to 4.5 stops (up to 7 stops with Coordinated Control IS)
– Rounded 7-blade diaphragm
– Center Focus Macro function (up to 0.59x magnification, manual focus)
– Minimum autofocus distance of 0.17m (18-35mm)
– 55mm filter thread
– Compact, lightweight design (approximately 305-310g)
– Compatible with Canon APS-C RF-mount cameras (1.6x crop applied on full-frame RF bodies)