Lens
Focal Length 16mm
Maximum and Minimum Aperture F2.8 – F22
Lens Mount Type RF Mount; Metal Mount
Compatible Cameras Canon EOS R-series, including full-frame
Minimum Focusing Distance 5.1 in. / 0.43 ft. / 0.13m
Maximum Magnification 0.26x
Field of View, at Minimum Focus Distance Approx. 5.3 x 3.5 in. 134 x 90mm
Angle of View Diagonal Approx. 108°10"
Optical Design
Lens Construction 9 elements in 7 groups
Special Elements: One Aspherical element
Lens Coating Canon SSC, Super Spectra Coating
Filter Size Diameter Ø43mm
Aperture Blades 7; circular shape
Image Stabilization None (with EOS R5 in-body stabilization – 5.5 stops correction)
Focusing
Focusing Drive System Canon STM (Stepping motor; gear-type)
Full-time Manual Focusing
Yes, after One-Shot AF; after Servo AF with compatible EOS R-series cameras
Dual Pixel CMOS AF Coverage
Horizontal x Vertical
• EOS R/RP — Approx. 88% x 100%
• EOS R5/R6 — Approx. 90% x 100%
Face Detect + Tracking – Approx. 100% x 100%
Exterior Design
Control Ring
Dual-function Manual focus ring / Control Ring (selected with switch on lens)
• No clicks when set to Control Ring function
Manual Focus Ring
Electronic ring system
• Full-time Manual focus possible
• No physical limit to ring rotational angle
AF/MF Switch None — focus mode selected in camera menu
MF/Control Ring Switch Provided on lens barrel
Distance Scale
None
• Distance scale available in EVF or Live View LCD screen of compatible
EOS R-series cameras
Distance Limiter Switch None
Specifications
RF16mm F2.8 STM
Dust / Weather Resistant Construction None
Dimensions, Weight
Maximum Outer Diameter x Length Approx. 1.6 in. x 2.7 in., 40.1 x ø69.2mm
Weight Approx. 5.8 oz. / 0.4 lb. / 165g
Accessories
Lens hood
Canon EW-65C
• Bayonet-mount, petal-shaped hood
• Optional accessory, sold separately
Lens Cap
(Front) Canon E-45 (center pinch-type) (Bundled)
(Rear) Canon Dust Cap RF
Dust Cap Canon Lens Dust Cap RF (Bundled)
Lens Case
Canon Lens Case LP1014
• Optional accessory, sold separately
Extension Tubes None (No Canon RF mount extension tubes)
Close-up Lenses 250D / 500D None (no ø43mm size available)
Canon RF Extender 1.4x/2x Not compatible
Canon Gelatin Filter Holder III/IV Not compatible