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

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Compare with

400mm

Focal length

f/2.8

Max aperture

14mm35mm85mm200mm600mm

▲ 400mm

Max aperture

f/1.8

f/2.8

f/5.6

Constant Aperture

Near focus65' 0"

Far focus66' 3"

Total DOF1' 4"

Hyperfocal6500' 11"

Subject distance65' 7"

Focal length400 mm

Aperturef/2.8

SensorFull Frame

Illustrative scene preview based on this lens's focal length, aperture, and sensor coverage.

This preview uses 400mm, f/2.8, and Full Frame. Subject distance is estimated to keep lens previews comparable.

Minimum focus distance is missing in the current record, so the preview uses a generic safe subject distance.

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.