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 highly versatile and all‑in‑one zoom lens designed for Canon’s APS‑C mirrorless cameras with an RF‑S mount, such as the EOS R10 and EOS R50. Its broad 18–150 mm focal range (effective 29–240 mm in 35 mm terms) covers a wide spectrum of shooting scenarios — from wide‑angle landscapes and street scenes to medium telephoto portraits, travel shots, and distant subjects — making it a convenient single‑lens solution for everyday photography and hybrid content creation.

Even with this extensive zoom range, the lens stays relatively compact and lightweight, making it ideal for travel or walk‑around use. At its widest aperture of f/3.5 and narrowing to f/6.3 at the telephoto end, it balances size and performance, enabling portable telephoto reach without the bulk of larger lenses. Its optical construction includes multiple lens elements arranged to control aberrations and enhance image clarity across the zoom range, with technologies such as Canon Super Spectra Coating to help reduce flare and ghosting in backlit or bright conditions.

Autofocus performance on this lens is driven by Canon’s Stepping Motor (STM) system, which provides smooth, quiet, and responsive autofocus — a benefit especially valued when recording video or shooting in environments where minimal focusing sound is required. The STM system also supports full‑time manual focus override, allowing fine manual focus adjustments without switching out of autofocus mode.

To help reduce blur from camera shake, the RF‑S 18‑150mm lens includes Optical Image Stabilization (IS), which can provide up to 5.5 stops of shake correction when paired with compatible Canon cameras that support coordinated IS with In‑Body Image Stabilization (IBIS). This advanced coordinated stabilization makes handheld shooting in low light or at longer focal lengths much more feasible, even without a tripod or monopod.

Handling and ergonomics are designed with everyday use in mind. The lens features a smooth zoom ring for controlled focal length changes and a dual‑function control ring that can be assigned to adjust exposure settings like aperture, ISO, or exposure compensation without taking your eye off the viewfinder. Its optical performance and flexible range make it particularly well‑suited for travel shooters, family photos, outdoor activities, street photography, and general content creation where one lens needs to do the job of many.

Despite its broad zoom range and stabilized performance, users should expect that wide openings (particularly at the tele end) are more limited compared to professional constant‑aperture zooms. However, the versatility of this lens — from wide landscapes to 150 mm telephoto reach — and its balance of image stabilization, autofocus performance, and everyday portability make it one of Canon’s most appealing all‑purpose lenses for APS‑C mirrorless shooters.