Canon RF-S 18-45mm f/4.5-6.3 IS STM Lens

The Canon RF-S 18-45mm f/4.5-6.3 IS STM is a compact standard zoom built for Canon’s APS-C mirrorless cameras, such as the EOS R7, R10, R50 and R100. It covers a 29-72mm equivalent focal range, from wide-angle to short telephoto. That makes it a good everyday lens for travel, family photos, street shooting, vlogging and general use. It weighs just 130g (4.6 oz), so it keeps a small camera body light and easy to carry.

The optical design uses 7 elements in 7 groups, including two PMo aspherical elements. These control spherical aberration and distortion, so images stay sharp and clear throughout the zoom range. Canon’s Super Spectra Coating cuts flare and ghosting and keeps contrast and color accurate, even in strong or backlit light. The rounded 7-blade diaphragm gives a pleasing background blur when you shoot at wider apertures or focus close.

Autofocus runs on an STM stepping motor, which is smooth, quiet and accurate. It works well for stills and is a strong match for video, where focus noise and abrupt focus shifts can be a problem. The lens supports Canon’s Dual Pixel CMOS AF and gives full coverage on APS-C sensors. Full-time manual focus is also available, so you can fine-tune focus without changing settings.

The built-in Optical Image Stabilizer gives up to 4 stops of shake correction. When paired with a camera that has in-body image stabilization, such as the EOS R7, Coordinated IS can reach up to 6.5 stops. This helps when you shoot handheld in dim light, at slower shutter speeds, or while recording video on the move.

Handling is simple. A single ring works as either a manual focus ring or a customizable control ring, chosen in the camera menu. As a control ring, it can adjust settings like aperture, shutter speed, ISO or exposure compensation. The barrel retracts when not in use to keep the lens as compact as possible for storage and travel.

Close focusing adds flexibility. Minimum focus distance is 20cm (7.9″) at 18mm in autofocus and drops to 15cm in manual focus. Maximum magnification reaches 0.16x in autofocus and up to 0.26x with manual focus, so you can get close to food, flowers and small details. The lens measures about 68.9 x 44.3mm and takes 49mm filters.

Key Features
– Standard zoom for Canon RF-S/APS-C mirrorless cameras
– 18-45mm focal length (29-72mm equivalent)
– f/4.5-6.3 maximum aperture, f/22-32 minimum aperture
– 7 elements in 7 groups, including 2 PMo aspherical elements
– Super Spectra Coating to reduce flare and ghosting
– STM stepping motor for smooth, quiet autofocus
– Full-time manual focus
– Optical Image Stabilizer with up to 4 stops of correction
– Up to 6.5 stops with Coordinated IS on compatible IBIS bodies
– Dual-function focus/control ring, customizable in camera
– Retractable design for compact storage
– Minimum focus distance of 20cm (AF) and 15cm (MF)
– Maximum magnification of 0.16x (AF) and up to 0.26x (MF)
– Rounded 7-blade diaphragm
– 49mm filter thread
– Weight about 130g (4.6 oz)
– Dimensions about 68.9 x 44.3mm