The Canon RF 800mm f/11 IS STM is an exceptional telephoto prime lens that combines an extensive focal length with a remarkably compact design. Its retractable structure and fixed f/11 aperture contribute to a streamlined profile, enabling photographers to engage in handheld super-telephoto shooting with ease. Additionally, the lens is equipped with four stops of effective optical image stabilization, which significantly enhances the ability to capture sharp images in challenging lighting environments.

• Super-telephoto prime is designed for use with full-frame Canon RF-mount mirrorless digital cameras.
  
  
• Fixed f/11 aperture contributes to the sleek and portable form factor as well as a balanced mixture of depth of field and sharpness.
  
  
• Gapless dual-layer diffractive optics contribute to a marked reduction in chromatic and spherical aberrations as well as benefit the design of a relatively compact and lightweight lens.
  
  
• Retractable/extendable design, with a locking lens barrel, offers an impressively compact form factor considering the super-telephoto design.
  
  
• An Optical Image Stabilizer helps to minimize the appearance of camera shake by up to four stops to better enable working in low-light conditions and with slower shutter speeds.
  
  
• STM stepping motor offers fast, quiet, smooth, and accurate autofocus performance that is ideal for video recording as well as still shooting.
  
  
• Configurable Control Ring can be used to adjust a variety of exposure settings, including aperture, ISO, and exposure compensation.
  
  
• Compatible with optional Extender RF 1.4x and Extender RF 2x teleconverters to further increase the effective focal length.