Canon RF 800mm F11 IS STM – Key Specs & Features

The Canon RF 800mm F11 IS STM is a super-telephoto prime lens designed for RF-mount cameras. It offers an ultra-long reach in a compact and lightweight design, making it ideal for wildlife, bird, and sports photography.

Optical & Performance:
• Focal Length: 800mm
• Maximum Aperture: f/11 (fixed)
• Minimum Aperture: f/11 (fixed)
• Lens Construction: 11 elements in 8 groups
• Minimum Focus Distance: 6.0m (19.7 ft)
• Maximum Magnification: 0.14x

Image Stabilization & Autofocus:
• Optical Image Stabilization: Up to 4 stops of shake reduction
• Autofocus System: STM (Stepping Motor) – smooth and quiet focusing
• Focus Mode: AF/MF switch

Physical & Compatibility:
• Size (Collapsed): 101.6mm × 281.8mm (4.0 in × 11.1 in)
• Weight: Approx. 1,260g (2.78 lbs)
• Filter Thread: 95mm
• Lens Mount: RF-mount (Full-frame and APS-C compatible)
• Special Design: Retractable barrel for portability

Additional Features:
• Compatible with Canon RF 1.4x and 2x Extenders for even longer reach (1120mm and 1600mm)
• Diffractive Optics (DO) technology for a compact build
• Fixed f/11 aperture keeps the lens lightweight but limits low-light performance

This lens is an affordable super-telephoto option for wildlife and bird photography, offering impressive reach in a compact package. However, the fixed f/11 aperture means it performs best in bright lighting conditions.

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