Air Sphere Coating

Utilising the unique Air Sphere Coating (ASC) technology, the RF1200mm f/8L IS USM can suppress ghosting by reducing the reflectivity of light entering from a large angle of incidence and vertically.

Super UD Lens

The RF1200mm f/8L IS USM can produce superior image quality with minimal colour fringing from edge to edge of the frame using UD and Super UD Lens.

Fluorite Lens

The RF1200mm f/8L IS USM produces high quality images with minimal chromatic aberration through the use of fluorite lenses.

Optimised Lens Design

The elements are arranged in a way that significantly improves image quality. It also allows the lens design to be more compact and lightweight.

Image Stabilisation

The built-in Optical Image Stabilizer (Optical IS) provides image stabilisation of up to 4 shutter speed stops. The Optical IS enables shots previously not possible handheld, ensuring tack sharp images even when shooting in low-light.

IS Modes

1. IS Mode 1 for stationary subjects
2. IS Mode 2 for panning shoots
3. IS Mode 3 for subjects with unpredictable movement

High-Speed Shooting

High-speed continuous shooting of up to 30fps is supported when paired with compatible EOS R cameras using the electronic shutter.

Smooth Aperture

Aperture control of 1/8 step provides smooth, gradual transitions from dark areas to bright areas.

Customisable Buttons

Assign these Lens Function Buttons to toggle AF between functions, adjust exposure, activate Image Stabilizer or switch between focus or control ring functions.

A

Focus Presets

• Up to two presets
• Set to focus at a predetermined distance

B

Manual Focus Speed

• Three steps
• Allows finer control when manual focusing

C

Power Focus Mode

• Two steps
• Offers smooth focus movement for video

Dust-& Drip-Resistant

A dust- and drip-resistant construction all around keep dust and water droplets out.

Shock Resistant

The mechanical structure is engineered to provide the lens high durability with resistance to vibration and shock.

Flourine Coating

Smudge-resistant fluorine coating on the front lens prevents moisture and oil from sticking.

Heat-shield Coating

The signature Canon heat-shield white coating prevents overheating in hot weather.