Name: Canon RF 400mm f/2.8L IS USM Mark II (Rumor)
Brand: Canon
SKU: canon_rf_400mm_f28l_is_usm_m2_rumor

Canon RF 400mm f/2.8L IS USM Mark II (Rumor)

Note: the image may come from leaked material, be an AI recreation, or be a simple placeholder. Therefore, the final appearance of the lens may vary.

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Canon RF Super Telephoto full-frame

✋ Image Stabilization

🌧️ Weather Sealed

⚡ Autofocus

🖐️ Full-time Manual Focus

Useful links

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Wex Photo Video Canon RF 400mm f/2.8L IS USM Mark II

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Compare with

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400mm

Focal length

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f/2.8

Max aperture

🏔️ 👤 🦁

14mm35mm85mm200mm600mm

▲ 400mm

Max aperture

f/1.8

f/2.8

f/5.6

Constant Aperture

Handling & Controls

Tripod Collar: Yes
Focus Limiter: Yes
Custom Buttons: 4

Recommended Use

Ideal for: astro, Portraits, Sports, Wildlife

Summary

The rumored Canon RF 400mm f/2.8L IS USM Mark II is shaping up to be the new benchmark for sports and action photographers. Expected to be announced in late May 2026, this lens is reportedly being fast-tracked for professional use during the 2026 World Cup. The most significant rumored feature is the integration of a built-in 1.4x teleconverter, similar to Nikon's high-end Z-mount super-telephotos, which would allow instant switching to a 560mm f/4 equivalent.

Technical leaks also suggest the inclusion of a VCM (Voice Coil Motor) system to complement the USM focus motor, providing even faster tracking and silent operation. Furthermore, despite the added internal teleconverter, Canon is reportedly aiming for a further weight reduction compared to the current model's 2,890g, potentially through new optical designs and elements mentioned in recent Japanese patents.