Canon RF 10-20mm f/4 L IS STM Lens

The RF 10-20mm f/4 L IS STM is an ultra-wide zoom for full-frame Canon RF
mirrorless bodies, aimed at landscape, architecture and interior work. The
optical formula uses one Super UD element, three UD elements and three aspherical
elements to hold chromatic aberration and distortion in check across the zoom
range, with SWC and ASC coatings suppressing flare and ghosting in backlit
scenes.

Key features

• Stabilization — up to 5 stops on its own, rising to 6 stops of Coordinated IS on EOS R bodies with IBIS.
• Autofocus — leadscrew-type STM drive, fast and quiet enough for video.
• Control Ring — direct adjustment of aperture, ISO or exposure compensation from the lens.
• Close focus — just under 10″ at every focal length, for ultra-wide close-ups.
• Weather sealing — L-series sealing against dust and moisture.
• Nine-blade diaphragm — for smooth out-of-focus rendering.
• Rear gelatin filter slot — accepts insert-type gel filters.
• Built-in petal lens hood — shields against stray light without a separate accessory.