Canon RF 1200mm f/8 L IS USM.

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​Key Features

• ​Super-Telephoto Prime Lens: Designed for full-frame Canon EOS R-series mirrorless cameras. It's one of the longest native focal length lenses available for the system.

• ​Exceptional Image Quality: L-series construction with special optical elements, including two large-diameter fluorite elements, one Super UD (Ultra-low Dispersion), and one UD-glass element. These help to correct chromatic aberrations and deliver sharp, high-contrast images.

• ​Image Stabilization: Features a built-in Optical Image Stabilizer (IS) that provides up to 4 stops of shake correction. It offers three IS modes for different shooting scenarios: Mode 1 (general), Mode 2 (for panning), and Mode 3 (corrects shake only during exposure).

• ​Fast and Quiet Autofocus: Utilizes a Ring-Type Ultrasonic Motor (USM) for quick, accurate, and near-silent autofocus, which is beneficial for both still photography and video.

• ​Durable and Weather-Sealed: The L-series construction features a dust- and water-resistant design with seals to protect against moisture and dust. The front element has a fluorine coating to repel water, oil, and smudges, making it easy to clean.

• ​Customizable Controls: Includes a customizable electronic focus ring with three speed settings for manual focusing. It also has a focus range limiter switch and two focus presets to quickly return to a memorized distance.

• ​Extender Compatibility: Can be used with Canon RF 1.4x and RF 2x extenders to increase the effective focal length to 1680mm (f/11) and 2400mm (f/16) respectively.

​Detailed Specifications

• ​Lens Name: Canon RF 1200mm f/8 L IS USM

• ​Focal Length: 1200mm (fixed)

• ​Maximum Aperture: f/8

• ​Minimum Aperture: f/64

• ​Lens Mount: Canon RF Mount

• ​Lens Format Coverage: Full-Frame

• ​Lens Construction: 26 elements in 18 groups

• ​Diaphragm Blades: 9, rounded

• ​Angle of View (diagonal): 2° 05′
• ​Minimum Focusing Distance: 14.1 ft. / 4.3 m
• ​Maximum Magnification: 0.29x

• ​Filter Size: 52mm (drop-in)

• ​Dimensions (ø x L): Approx. 6.6 x 21.1 in. / 168 x 537 mm
• ​Weight: Approx. 7.3 lb / 3340 g