Canon 1.4x Extender RF


Highlights & In The Box

  • Lens Cap: Extender cap RF, Lens dust cap RF
  • Lens Hood
  • Lens Bag: LP811
  • Warranty: 2 Year

*Disclaimer: Box content may vary with new stock



Canon 1.4x Extender RF

Extends a super telephoto lens’ focal length by 1.4x, so that an 800mm focal length, for example, becomes 1 120mm. The extra reach makes it possible to get larger close-ups with the original camera resolution.

  • Dust and drip resistance design with white heat-shield coating
  • Supports High-precision and Fast AF
  • Excellent Flare and Ghosting Reduction

High Image Quality
A large aperture lens placed near the image sensor, the use of high-refractive, low-dispersion glass, and three cemented lenses that minimise air contact surface suppress field curvature, lens aberration and flare and ghosting, hence optimising corner-to-corner image quality.

Strength & Reliability
The lens features a vibration- and impact-resistant structure with a dust- and drip-resistant design, ready to withstand nature, motorsports, and other harsh professional and advanced shooting scenes.
​​​​​​​Supporting heavy lenses is all in a day’s work for its robust, durable body.

AF ​​​​​​​Support
Shooting at super-long focal lengths means a shallower depth-of-field, which can make focusing tricky. On the Extender RF 1.4x, built-in microprocessors communicate with the lens, achieving high-precision AF over an area as large as up to 80% x 80% (horizontal x vertical) of the focal plane* helping you to lock focus on your subjects more easily.

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Angle of View (Diagonal)
Angle of View (Horizontal)
Angle of View (Vertical)
Closest Focusing Distance (m, ft)
Construction (Groups Elements) 4-7
Diameter x Length 71.2 × 20.3mm
Distance Scale
Drive System
Filter Size
Maximum Magnification (x)
Minimum Aperture
Number of Diaphragm Blades
Anti-dust and Moisture Supported
Weight 225g


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