Canon Extender RF 2x

The Canon Extender RF 2x is a teleconverter designed for Canon’s full-frame RF-mount mirrorless system, doubling the effective focal length of compatible super-telephoto lenses, giving photographers significantly extended reach for wildlife, sports, and distant subject photography without needing to invest in an entirely separate, longer telephoto lens. This makes it a valuable accessory for photographers who already own compatible RF telephoto glass and want to extend their reach for specific shooting situations.

By doubling focal length, the Extender RF 2x transforms a lens like a 400mm super-telephoto into an effective 800mm, dramatically increasing reach for subjects that require significant distance, such as distant wildlife, birds in flight, or far-field sports action. This added reach comes with a trade-off of reduced maximum aperture, since teleconverters reduce the amount of light reaching the sensor, typically costing two full stops of light with a 2x extender, meaning photographers should expect a notable decrease in low-light performance compared to using the lens without the extender attached.

Designed specifically for compatibility with select Canon RF L-series super-telephoto lenses, the Extender RF 2x maintains full electronic communication between lens and camera, preserving autofocus functionality on compatible lens and camera body combinations, though autofocus speed may be somewhat reduced compared to using the lens alone due to the reduced light reaching the autofocus sensor. This continued autofocus support is a significant advantage over older teleconverter designs that could disable autofocus entirely when attached.

Built with weather-sealed construction consistent with Canon’s professional L-series equipment standards, the Extender RF 2x is designed to hold up to demanding professional use in outdoor and field conditions alongside the super-telephoto lenses it’s paired with. Its compact design mounts directly between the camera body and a compatible lens, adding extended reach without requiring an entirely separate telephoto lens purchase. For photographers who own compatible Canon RF super-telephoto lenses and need occasional additional reach for wildlife, birding, or distant sports photography, this extender offers a practical, cost-effective way to extend their existing telephoto lens’s capability.

Specs:
– Function: 2x teleconverter (doubles focal length)
– Lens mount: Canon RF (full-frame)
– Compatibility: Select Canon RF L-series super-telephoto lenses
– Light loss: Approximately 2 stops
– Autofocus: Maintained on compatible lens/camera combinations
– Build: Weather-sealed construction