About the Canon EF 2x III Extender
Get some extra versatility from your telephoto L-Series lens with this precision-designed 2.0X extender. Your 300mm lens, for example, will double in reach, with a resulting focal length of 600mm (on full-frame cameras) or 960mm (on APS-C sensor cameras), once this extender has been placed in the light path. And it will only give up two stops of light sensitivity in the process. It's like getting two lenses out of your kit bag when this extender is standing at the ready.
A built-in microcomputer facilitates communication between lens, extender, and camera body, and provides fully integrated exposure and focus control on many Canon lenses. Not all lenses will be fully compatible though, so you should check your manuals and the Canon website to make sure of your lens's compatibility with this extender.
Fluorine coatings on the extender's optical elements will keep soils, smearing and fingerprints to a minimum. And it features rugged dustproof and water-resistant construction.
Product highlights:
- increases focal length by 2.0X on select Canon L-series telephoto lenses
- example: a 300mm prime lens will have its reach doubled to 600mm while only losing two stops of sensitivity
- multiply your lens's focal length by 2 to see the resulting focal length when this lens is placed in-line on a full frame camera
- then multiply that result by 1.6 to see your effective focal length on Canon APS-C cameras
- rugged dustproof and water-resistant construction
- on-board microcomputer regulates communication between camera, extender, and lens
- 9 elements in 5 groups
- only compatible with select L-Series lenses; not all automatic functions will be accessible on all lenses, consult manuals and Canon's website for compatibility info
- 2-7/8" (diameter) x 2-5/8" (length)
- 11.5 ounces
- warranty: 1 year
- MFR # 4410B002
What's in the box:
Canon EF 2x III Extender owner's manual
- Extender EF2x III lens adapter
- Front body cover (installed)
- Rear lens cap (installed)
- Lens Case LP811
- Quick Guide
- Warranty Card
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Features
Overview: The Canon Extender 2x III will extend the focal length of a lens by a factor or 2x. It has a standard Canon EF-mount, and is compatible with many L-series Canon EF lenses (see list below). It features 9 elements in 5 groups, and comes with a soft LP811 lens case.
Compatibility: The Extender 2x III is compatible with the following Canon lenses:
Compatible Lens | Focal Length and Maximum Aperture with EF2x III |
---|---|
EF135mm f/2L USM | 270mm f/4 |
EF180mm f/3.5L Macro USM | 360mm f/6.7 |
EF200mm f/2.8L USM | 400mm f/5.6 |
EF200mm f/2.8L II USM | 400mm f/5.6 |
EF200mm f/1.8L USM | 400mm f/3.5 |
EF200mm f/2L IS USM | 400mm f/4 |
EF300mm f/4L USM | 600mm f/8 |
EF300mm f/4L IS USM | 600mm f/8 |
EF300mm f/2.8L USM | 600mm f/5.6 |
EF300mm f/2.8L IS USM | 600mm f/5/6 |
EF400mm f/5.6L USM | 800mm f/11 |
EF400mm f/4 DO IS USM | 800mm f/8 |
EF400mm f/2.8L USM | 800mm f/5.6 |
EF400mm f/2.8L II USM | 800mm f/5.6 |
EF400mm f/2.8L IS USM | 800mm f/5.6 |
EF500mm f/4.5L USM | 1000mm f/9.5 |
EF500mm f/4.5L IS USM | 1000mm f/8 |
EF600mm f/4L USM | 1200mm f/8 |
EF600mm f/4L IS USM | 1200mm f/8 |
EF800mm f/5.6L IS USM | 1600mm f/11 |
EF100-400mm f/4.5-5.6L IS USM | 200-800mm f/9.5-11 |
EF70-200mm f/4L USM | 140-400mm f/8 |
EF70-200mm f/4L IS USM | 140-400mm f/8 |
EF70-200mm f/2.8L USM | 140-400mm f/5.6 |
EF70-200mm f/2.8L IS USM | 140-400mm f/5.6 |
EF70-200mm f/2.8L IS II USM | 140-400mm f/5.6 |
EF300mm f/2.8L IS II USM | 600mm f/5.6 |
EF400mm f/2.8L IS II USM | 800mm f/5.6 |
EF500mm f/4L IS II USM | 1000mm f/8 |
EF600mm f/4L IS II USM | 1200mm f/8 |
EF1200mm f/5.6L USM | 2400mm f/11 |
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Excellent build and quality! Images are crisp and clean!
Starphotog from Alabama