Canon RF 800mm F11 IS STM - 795097

Canon RF 800mm F11 IS STM - 795097

What our Experts Think

• Huge reach in a compact package: Delivers a true 800 mm super‑telephoto view in a surprisingly lightweight, retractable design, making distant subjects like wildlife, birds, and aircraft much easier to frame.
• Affordable long‑lens option: Its fixed f/11 aperture and streamlined optics reduce cost and size compared to traditional super‑telephoto lenses, offering excellent value for photographers who need extreme reach without a massive budget.
• Effective image stabilization: Built‑in 4‑stop optical IS helps keep shots sharp when handheld — crucial at such long focal lengths.
• Smooth & quiet AF: STM focusing motor provides reliable, quiet autofocus for stills and video, even though the fixed aperture isn’t ideal in low light.
• Good real‑world handling: Reviewers note it’s surprisingly manageable handheld and isn’t as front‑heavy as many telephoto lenses, so it’s easier to shoot with for extended periods.
• Limitations to consider: The fixed f/11 aperture means you’ll need good light or high ISO for fast shutter speeds, and lack of weather sealing or aperture control may limit flexibility.
• Unique but worthwhile: While niche, many photographers appreciate its performance and reach in bright conditions, especially for subjects always far away.

Q&A

Q: What is this lens?
A: A super‑telephoto prime lens for Canon RF‑mount full‑frame mirrorless cameras, offering extremely long reach in a compact design.

Q: What focal length and aperture does it have?
A: 800 mm focal length with a fixed f/11 aperture.

Q: Is it lightweight and portable?
A: Yes — lightweight (~1,260 g) and retractable for easy transport compared with typical 800 mm lenses.

Q: Does it have image stabilization?
A: Yes — built‑in optical IS provides roughly 4 stops of shake correction.

Q: How is autofocus performance?
A: Uses a smooth, quiet STM motor for autofocus optimized for stills and video.

Q: What’s the minimum focus distance?
A: Approximately 6 m (19.7 ft) with ~0.14× magnification.

Q: Can it use teleconverters?
A: Yes — compatible with Canon RF 1.4× and 2× extenders for greater reach.

Q: What photography is it best suited for?
A: Ideal for wildlife, birds, aviation, sports, and distant subjects where extreme reach matters.

Q: What are key trade‑offs?
A: Fixed f/11 limits low‑light performance and depth‑of‑field control compared with faster lenses, but enables a much smaller and lighter super‑telephoto optic.

Q: What filter size does it use?
A: 95 mm front filter thread.

Q: Who should consider this lens?
A: Enthusiasts and photographers on a budget who want true 800 mm reach in a relatively portable package.

Maintenance Tips

• Clean front and rear elements gently with microfiber cloth + air blower
• Always use front & rear lens caps to prevent dust and scratches
• Store in a padded case or dry box with silica gel to avoid fungus
• Avoid touching optical surfaces directly
• Keep away from extreme heat, humidity, and sudden temperature changes
• Wipe lens mount contacts occasionally for stable AF and IS communication
• Handle carefully—long focal length increases risk of impact damage
• Use tripod or monopod to reduce strain and vibration
• Inspect lens periodically for dust, fungus, or mechanical issues