Canon Extender EF 2x II (EF)

The Canon EF 2x II Extender is an easy and very affordable way to dramatically extend the reach (focal length) of compatible Canon L Series lenses (and a few additional lenses).

The Canon EF 2x II Extender mounts between the compatible lens and body, and multiplies the focal length settings of your lens by 2. That's the good news - the bad news is the 2x decreases/narrows your lens' aperture setting by 2 stops. The lens aperture still opens to the same width, but the ratio of the aperture opening to the focal length is reduced - by 2 stops.

For example, the Canon 2x makes a Canon EF 70-200mm f/2.8L IS Lens into a 140-400mm f/5.6 IS lens - and yes, IS still functions normally. A Canon EF 70-200mm f/4.0L Lens mounted over a 2x becomes a 140-400mm f/8 lens. A Canon EF 300mm f/2.8L IS Lens becomes a 600mm f/5.6 IS lens.

Extenders do not affect the MFD (Minimum Focus Distance) of the lens they are mounted behind, thus the MM (Maximum Magnification) of the lens is also multiplied by 2x.

Lightbulb rents the Canon Extender EF 2x II (EF) along with thousands of other items with next-day pickup or regional delivery across New York and Pennsylvania. Every order is fully inspected and prepped before it ships, and our team can help you build a matching package, add expendables, or answer technical questions before your shoot.