Canon RF 800mm f/11 IS STM
The RF 800mm f/11 IS STM is a high-performance RF standard prime lens engineered for Canon EOS R system mirrorless cameras. Features STM autofocus, optical image stabilization, and premium optical coatings.
Engineered to maximize the potential of the EOS R system, the Canon RF 800mm f/11 IS STM is a standout choice in its class. Offering impressive telephoto reach, it is uniquely positioned for distant subjects.
When mounted on a high-resolution R-series body, the image quality simply speaks for itself. The STM motor ensures smooth, quiet focusing adjustments, particularly beneficial during video capture. Its built-in optical image stabilization (4.0 stops standalone optical stabilization) effectively mitigates camera shake, ensuring sharper handheld shots. While lacking L-series weather sealing, its build quality remains robust and practical for everyday shooting. By utilizing Diffractive Optics (DO), Canon dramatically reduces the physical size and weight without sacrificing telephoto reach.
It's a fantastic entry point into the RF ecosystem, offering genuine value and great image quality. It is an ideal companion to a 24-70mm standard zoom.
✅ Strengths
- Optical image stabilization (4.0 stops standalone optical stabilization)
- Customizable Control Ring for aperture, ISO, or exposure compensation
⚠️ Considerations
- No professional weather-sealing gaskets (use caution in rain or dust)
- Substantial weight (1,260 g (44 oz)) may require monopod or tripod support
- Large 95 mm front filter thread increases accessory costs
Full Technical Specifications
| Lens Model | Canon RF 800mm f/11 IS STM |
| Lens Mount | Canon RF |
| Sensor Format | Full Frame |
| Optical Construction | 11 elements in 8 groups |
| Special Glass & Optics | Diffractive Optics (DO) element, Retractable lightweight barrel |
| Min. Focus Distance | 6.0 m (19.7 ft) |
| Max. Magnification | 0.14x |
| Image Stabilization | 4.0 stops standalone optical stabilization |
| Diaphragm Blades | Fixed f/11 circular diaphragm |
| Autofocus Motor | STM |
| Filter Diameter | 95 mm |
| Dimensions (D × L) | 101.6 mm (4.00 in) × 351.8 mm (13.85 in) |
| Weight | 1,260 g (44 oz) |
| Lens Hood | ET-101 |
| Release Date | 2020-07-09 |
| Series Classification | Standard |
| Estimated MSRP | $499 |
Features & Optical Technology
Recommended Photography Genres
Frequently Asked Questions
Q: Is the RF 800mm f/11 IS STM weather sealed?
A: No, this lens does not feature professional weather sealing. It is recommended to use caution or a rain cover when shooting in wet or dusty conditions.
Q: What size filter does the RF 800mm f/11 IS STM use?
A: The lens features a 95 mm front filter thread. Any circular filters (like UV, CPL, or ND) will need to match this 95 mm diameter.
Q: Is the RF 800mm f/11 IS STM compatible with Canon RF extenders?
A: Yes, this lens is compatible with Canon's RF 1.4x and 2x extenders, allowing you to increase the focal length for even more reach.
✓ Includes configurable electronic Control Ring for aperture, ISO, or shutter speed.