Canon RF 600mm f/4L 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

600mm

Focal length

f/4

Max aperture

14mm35mm85mm200mm600mm

▲ 600mm

Max aperture

f/2

f/4

f/8

Constant Aperture

Near focus65' 3"

Far focus66' 0"

Total DOF10"

Hyperfocal10238' 10"

Subject distance65' 7"

Focal length600 mm

Aperturef/4

SensorFull Frame

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

This preview uses 600mm, f/4, 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, Sports, Wildlife

Summary

The rumored Canon RF 600mm f/4L IS USM Mark II is positioned as the ultimate reaching prime for specialized action and nature photographers. Likely announced in late May 2026 alongside its 400mm sibling, this lens is expected to set new standards for the 2026 World Cup. Rumors strongly suggest it may include a built-in 1.4x teleconverter, effectively allowing it to transform into an 840mm f/5.6 behemoth with the flip of a switch.

Advancements such as the VCM (Voice Coil Motor) system are expected to deliver near-silent and ultra-precise tracking for high-speed subjects. Despite the potential complexity of an integrated extender, Canon's recent patents hint at a lighter construction than the current 3,090g model, improving field usability for professional sports shooters and birders alike.