Canon RF 15-35 mm f/2.8 L IS USM – Full SpecificationsMount: Canon RF, full-frame only.

Focal Length: 15 – 35 mm (2.3× zoom).

Maximum Aperture: Constant f/2.8 across the range.

Minimum Aperture: f/22.

Aperture Blades: 9 rounded blades producing circular bokeh.Optical Construction: 16 elements in 12 groups, including 3 aspherical and 2 UD elements, plus Canon Super Spectra and fluorine coatings on front & rear elements for flare, ghost and smudge resistance [^0^].Image Stabilisation: Optical IS rated 5 stops (CIPA standard, 35 mm end, EOS R) [^2^].Autofocus Drive: Nano USM ultrasonic motor with full-time manual override [^3^].

Minimum Focus Distance: 0.28 m (0.92 ft) from sensor plane.

Maximum Magnification: 0.21× at 35 mm.Filter Thread: 82 mm (standard screw-in).

Weather Sealing: Dust- and moisture-resistant L-series construction with rubber sealing at mount and control points [^4^].Dimensions: ø 88.5 × 126.8 mm (3.5 × 5.0 in).

Weight: 840 g (1.85 lb).