Canon RF-S 55-210mm f/5-7.1 IS STM Lens (Canon RF)

Canon RF-S 55-210mm f/5-7.1 IS STM Lens
Compact APS-C Telephoto Zoom – 88-336mm Full-Frame Equivalent, 4.5-Stop Optical Image Stabilization, Lead Screw-Type STM Motor & UD Glass Optics

The Canon RF-S 55-210mm f/5-7.1 IS STM is a lightweight, ultra-portable telephoto zoom lens engineered specifically for APS-C format Canon EOS R-series mirrorless cameras. Delivering a 35mm-equivalent focal length range of 88-336mm, this sleek telephoto optic provides extended reach tailored for sports, outdoor wildlife, travel, and environmental portraiture.

Optically, the lens incorporates two Ultra-Low Dispersion (UD) glass elements alongside Canon’s Super Spectra Coating to minimize chromatic aberrations, color fringing, flare, and ghosting. Focus tracking is driven by a lead screw-type STM stepping motor, delivering fast, smooth, and near-silent autofocus performance suited for both photo and video workflows. To support handheld shooting at slow shutter speeds or longer focal lengths, the built-in Optical Image Stabilizer compensates for up to 4.5 stops of camera shake (or up to 7.0 stops of Coordinated IS when paired with an EOS R camera body featuring In-Body Image Stabilization). Weighing just 9.5 oz, the compact housing offers a minimum focusing distance of 28.7 inches (2.3 feet) for close-up detail shooting.

CONDITION DIAGNOSTICS & PHYSICAL NOTES

Exterior & Housing: PRE-OWNED. The lightweight composite lens barrel, zoom ring, manual focus/control ring, and RF bayonet mount display light superficial surface marks consistent with standard handling.

Mechanical & Optical Status: FULLY FUNCTIONAL. Optical glass elements are clear and free of damage; lead screw STM autofocus motor, optical image stabilization system, zoom helicoid, and electronic contacts function properly.

KEY FEATURES & PERFORMANCE HIGHLIGHTS

88-336mm Full-Frame Equivalent Reach: Compact telephoto range brings distant action, sports, and wildlife subjects into clear frame.

4.5-Stop Optical Image Stabilization: Minimizes camera shake for sharp handheld exposures, expanding up to 7 stops on IBIS-equipped EOS R bodies.

Quiet STM Stepping Motor: Delivers smooth, near-silent autofocus tracking optimized for both video recording and fast still photography.

Advanced UD Optics & Super Spectra Coating: Features 2 UD elements to suppress chromatic aberrations while maintaining color accuracy and contrast.

Lightweight 9.5 oz Walkaround Build: Offers extended telephoto capabilities without adding excessive weight to your camera bag.

TECHNICAL SPECIFICATIONS

Lens Type: Lightweight Telephoto Zoom Lens

Lens Mount System: Canon RF-S Native (APS-C / EOS R Series Compatible)

Focal Length Range: 55 to 210 mm (35mm Full-Frame Equivalent: 88 to 336 mm)

Maximum Aperture: f/5 to 7.1

Minimum Aperture: f/22 to 32

Minimum Focus Distance: 28.7 inches / 0.73 m (at 210mm)

Maximum Reproduction Ratio: 0.28x (at 210mm)

Optical Construction: 11 Elements in 8 Groups (2 UD Elements)

Optical Coatings: Super Spectra Coating

Image Stabilization: Optical Image Stabilizer (4.5 Stops Standalone / Up to 7.0 Stops Coordinated IS)

Autofocus Mechanism: Lead Screw-Type STM Stepping Motor

Diaphragm Design: 7-Blade Iris

Filter Thread Diameter: 55 mm

Dimensions (Diameter x Length): Approx. 2.7 x 3.7 inches / 69.0 x 92.9 mm

Weight: Approx. 9.5 oz / 270 g