Canon RF 1200mm f/8 L IS USM Lens

RF-Mount Lens/Full-Frame Format
Aperture Range: f/8 to f/64
Fluorite, Super UD, and UD Elements
Air Sphere and Super Spectra Coatings
Ring-Type USM AF System
Optical Image Stabilizer
Focus Range Limiter, Two Focus Presets
Customizable Electronic Focus Ring
Weather-Sealed Design, Fluorine Coating
Rotating Tripod Collar