Canon Extender EF
Encyclopedia
Teleconverter
A teleconverter is a secondary lens which is mounted between the camera and a photographic lens. Its job is to enlarge the central part of an image obtained by the objective lens...
lenses
Photographic lens
A camera lens is an optical lens or assembly of lenses used in conjunction with a camera body and mechanism to make images of objects either on photographic film or on other media capable of storing an image chemically or electronically.While in principle a simple convex lens will suffice, in...
made by Canon. These lenses are used between any compatible EF type lens
Canon EF lens mount
Introduced in 1987, the EF lens mount is the standard lens mount on the Canon EOS family of SLR film and digital cameras. EF stands for "Electro-Focus": automatic focusing on EF lenses is handled by a dedicated electric motor built into the lens...
and any of the Canon EOS
Canon EOS
The Canon EOS autofocus 35 mm film and digital SLR camera system was introduced in 1987 with the Canon EOS 650 and is still in production as Canon's current DSLR system...
line of cameras. When used with a compatible lens, such as the Canon EF 500mm 4L IS USM
Canon EF 500mm lens
The EF 500mm lenses are a group of super-telephoto prime lenses made by Canon that share the same focal length.These lenses have an EF type mount, that fit the Canon EOS line of cameras....
, they will multiply the focal length of the lens by a factor of either 1.4× or 2.0×. This will result in a focal length of 700mm or 1000mm, respectively, with a 500mm lens.
Canon has released six models:
- 1.4×
- 1.4× II
- 1.4× III
- 2×
- 2× II
- 2× III
Technical information
They are constructed with metal bayonets, and engineered plastic ends. There are no moving parts, other than the lens latch lock. Two generations of the extenders exist, the older 1.4× and 2×, plus the newer 1.4× II as well as 2× II. The newer II versions have weather-sealing and anti-reflective surfaces inside the extender body. The optical construction of the 1.4× versions are a of five-element design. Both 2× versions use seven elements, although the optical formula of the II version is different, to improve optical performance http://www.canon.com/camera-museum/tech/report/200109/report.html#t8.Compatibility information
Autofocus
An autofocus optical system uses a sensor, a control system and a motor to focus fully automatic or on a manually selected point or area. An electronic rangefinder has a display instead of the motor; the adjustment of the optical system has to be done manually until indication...
speed of any used EF lens is also affected. When used with the 1.4× extender, autofocus speed is reduced to a half. When used with the 2× extender, autofocus speed is reduced to a quarter. Image stabilization
Image stabilization
Image stabilization is a family of techniques used to reduce blurring associated with the motion of a camera during exposure. Specifically, it compensates for pan and tilt of a camera or other imaging device. It is used in image-stabilized binoculars, still and video cameras, and astronomical...
may not work on lenses that are equipped with an extender, or on certain EOS bodies.
Though not specified by Canon as such, users have reported that the tilt-shift
Perspective correction lens
In photography, a perspective control lens allows the photographer to control the appearance of perspective in the image; the lens can be moved parallel to the film or sensor, providing the equivalent of corresponding view camera movements...
lenses in Canon's line-up can also be used with the extenders. However, when used with an extender, the lens will not pass on the correct aperture to the camera. The focal length stored in the Exif data will also be incorrect.
List of compatible EF lenses
The following is a list of EF lenses that are compatible with the Extender EF lenses together with their resulting focal lengths, and apertures. Also listed is the autofocus and image stabilization functionality.| Lens | Lens with 1.4× | AF with 1.4× | IS with 1.4× | Lens with 2× | AF with 2× | IS with 2x |
|---|---|---|---|---|---|---|
| 135 mm 2L USM Canon EF 135mm lens -EF 135mm 2L USM:The Canon EF 135mm 2L USM is a short-to-medium telephoto lens. The "135/2" is mainly used for portrait photography and for indoor sports, where the lighting is often poor. The fast aperture makes the lens ideal for both of these applications.... |
190 mm 2.8 |  |
— | 270 mm 4 | |
— |
| 180 mm 3.5L Macro USM Canon EF 180mm f/3.5L Macro USM lens The Canon EF 180/3.5L Macro USM lens is the longest macro lens made by Canon in the EF mount and one of only two Canon macro lens that is part of the L series. This lens is compatible with the Canon Extender EF teleconverters.- External links :* * *... |
252 mm 5 | |
— | 360 mm 7.1 |  |
— |
| 200 mm 1.8L USM Canon EF 200mm lens The EF 200mm USM lens is a L-series prime telephoto lenses made by Canon Inc. for the EOS line of cameras. Four 200mm primes were made: 1.8, two 2.8, and the most recent 2.0.... |
280 mm 2.5 | |
— | 400 mm 3.5 | |
— |
| 200 mm 2.0L IS USM Canon EF 200mm lens The EF 200mm USM lens is a L-series prime telephoto lenses made by Canon Inc. for the EOS line of cameras. Four 200mm primes were made: 1.8, two 2.8, and the most recent 2.0.... |
280 mm 2.8 | |
|
400 mm 4 | |
|
| 200 mm 2.8L II USM Canon EF 200mm lens The EF 200mm USM lens is a L-series prime telephoto lenses made by Canon Inc. for the EOS line of cameras. Four 200mm primes were made: 1.8, two 2.8, and the most recent 2.0.... |
280 mm 4 | |
— | 400 mm 5.6 | |
— |
| 300 mm 2.8L USM Canon EF 300mm lens The EF 300mm lens refers to five telephoto prime lenses made by Canon. The lenses have an EF type mount which fits the Canon EOS line of cameras.... |
420 mm 4 | |
— | 600 mm 5.6 | |
— |
| 300 mm 2.8L IS USM Canon EF 300mm lens The EF 300mm lens refers to five telephoto prime lenses made by Canon. The lenses have an EF type mount which fits the Canon EOS line of cameras.... |
420 mm 4 | |
|
600 mm 5.6 | |
|
| 300 mm 4L USM Canon EF 300mm lens The EF 300mm lens refers to five telephoto prime lenses made by Canon. The lenses have an EF type mount which fits the Canon EOS line of cameras.... |
420 mm 5.6 | |
— | 600 mm 8 |  |
— |
| 300 mm 4L IS USM Canon EF 300mm lens The EF 300mm lens refers to five telephoto prime lenses made by Canon. The lenses have an EF type mount which fits the Canon EOS line of cameras.... |
420 mm 5.6 | |
|
600 mm 8 | |
|
| 400 mm 2.8L USM Canon EF 400mm lens The Canon EF 400mm are four super-telephoto lenses made by Canon Inc. These lenses have an EF mount that work with the EOS line of cameras. These lenses are widely used by sports and wildlife photographers.... |
560 mm 4 | |
— | 800 mm 5.6 | |
— |
| 400 mm 2.8L II USM Canon EF 400mm lens The Canon EF 400mm are four super-telephoto lenses made by Canon Inc. These lenses have an EF mount that work with the EOS line of cameras. These lenses are widely used by sports and wildlife photographers.... |
560 mm 4 | |
— | 800 mm 5.6 | |
— |
| 400 mm 2.8L IS USM Canon EF 400mm lens The Canon EF 400mm are four super-telephoto lenses made by Canon Inc. These lenses have an EF mount that work with the EOS line of cameras. These lenses are widely used by sports and wildlife photographers.... |
560 mm 4 | |
|
800 mm 5.6 | |
|
| 400 mm 4 IS DO USM Canon EF 400mm lens The Canon EF 400mm are four super-telephoto lenses made by Canon Inc. These lenses have an EF mount that work with the EOS line of cameras. These lenses are widely used by sports and wildlife photographers.... |
560 mm 5.6 | |
|
800 mm 8 | |
|
| 400 mm 5.6L USM Canon EF 400mm lens The Canon EF 400mm are four super-telephoto lenses made by Canon Inc. These lenses have an EF mount that work with the EOS line of cameras. These lenses are widely used by sports and wildlife photographers.... |
560 mm 8 | |
— | 800 mm 11 | |
— |
| 500 mm 4L IS USM Canon EF 500mm lens The EF 500mm lenses are a group of super-telephoto prime lenses made by Canon that share the same focal length.These lenses have an EF type mount, that fit the Canon EOS line of cameras.... |
700 mm 5.6 | |
|
1000 mm 8 | |
|
| 500 mm 4.5L USM Canon EF 500mm lens The EF 500mm lenses are a group of super-telephoto prime lenses made by Canon that share the same focal length.These lenses have an EF type mount, that fit the Canon EOS line of cameras.... |
700 mm 6.3 | |
— | 1000 mm 9.0 | |
— |
| 600 mm 4L USM Canon EF 600mm lens The Canon EF 600mm is a super-telephoto lens made by Canon Inc. The lens has an EF mount to work with the EOS line of cameras.4L USM lens was released in November 1988 4L IS USM lens was released in September 1999 4L IS II USM lens was announced in February 2011 The IS version has more lens... |
840 mm 5.6 | |
— | 1200 mm 8 | |
— |
| 600 mm 4L IS USM Canon EF 600mm lens The Canon EF 600mm is a super-telephoto lens made by Canon Inc. The lens has an EF mount to work with the EOS line of cameras.4L USM lens was released in November 1988 4L IS USM lens was released in September 1999 4L IS II USM lens was announced in February 2011 The IS version has more lens... |
840 mm 5.6 | |
|
1200 mm 8 | |
|
| 800 mm 5.6L IS USM Canon EF 800mm lens The Canon EF 800mm 5.6L IS USM lens is a super-telephoto lens by Canon Inc., released at a MSRP of US$11,999.00.-Technical information:The EF 800mm 5.6L IS USM is a professional L series lens released June 2008. This lens is constructed with a magnesium alloy body and mount and with plastic... |
1120 mm 8 | |
|
1600 mm 11 | |
|
| 1200 mm 5.6L USM Canon EF 1200mm lens The EF 1200mm 5.6L USM is a super-telephoto prime lens that was made by Canon Inc. It uses an EF mount, and is compatible with the Canon EOS camera range... |
1680 mm 8 | |
— | 2400 mm 11 | |
— |
| 70-200 mm 2.8L IS USM Canon EF 70-200mm lens The EF 70-200mm lens is a telephoto zoom lens made by Canon Inc.The lens has an EF mount to work with the EOS line of cameras.The lens comes in five different versions, all of which have fixed maximum aperture at all focal lengths and are L-series lenses.2.8L IS USM2.8L IS II USM2.8L USM4L IS USM4L... |
98–280 mm 4 | |
|
140–400 mm 5.6 | |
|
| 70-200 mm 2.8L IS II USM Canon EF 70-200mm lens The EF 70-200mm lens is a telephoto zoom lens made by Canon Inc.The lens has an EF mount to work with the EOS line of cameras.The lens comes in five different versions, all of which have fixed maximum aperture at all focal lengths and are L-series lenses.2.8L IS USM2.8L IS II USM2.8L USM4L IS USM4L... |
98–280 mm 4 | |
|
140–400 mm 5.6 | |
|
| 70-200 mm 2.8L USM Canon EF 70-200mm lens The EF 70-200mm lens is a telephoto zoom lens made by Canon Inc.The lens has an EF mount to work with the EOS line of cameras.The lens comes in five different versions, all of which have fixed maximum aperture at all focal lengths and are L-series lenses.2.8L IS USM2.8L IS II USM2.8L USM4L IS USM4L... |
98–280 mm 4 | |
— | 140–400 mm 5.6 | |
— |
| 70-200 mm 4L IS USM Canon EF 70-200mm lens The EF 70-200mm lens is a telephoto zoom lens made by Canon Inc.The lens has an EF mount to work with the EOS line of cameras.The lens comes in five different versions, all of which have fixed maximum aperture at all focal lengths and are L-series lenses.2.8L IS USM2.8L IS II USM2.8L USM4L IS USM4L... |
98–280 mm 5.6 | |
|
140–400 mm 8 | |
|
| 70-200 mm 4L USM Canon EF 70-200mm lens The EF 70-200mm lens is a telephoto zoom lens made by Canon Inc.The lens has an EF mount to work with the EOS line of cameras.The lens comes in five different versions, all of which have fixed maximum aperture at all focal lengths and are L-series lenses.2.8L IS USM2.8L IS II USM2.8L USM4L IS USM4L... |
98–280 mm 5.6 | |
— | 140–400 mm 8 | |
— |
| 100-400 mm 4.5-5.6L IS USM Canon EF 100-400mm lens The EF 100-400mm 4.5-5.6L IS USM is a professional EF mount telephoto zoom lens introduced by Canon Inc. in September 1998. It is a high performance tele-photo lens ideal for sports and wildlife photography which has received high ratings from purchasers at Amazon.com and B&H Photo Video.This lens... |
140–560 mm 6.3-8 | |
|
200–800 mm 9-11 | |
|
| TS-E 17 mm 4L Canon TS-E 17mm lens The Canon TS-E 17 mm 4L is a tilt-shift, ultra-wide-angle prime lens that provides the equivalent of the corresponding view camera front movements on Canon EOS camera bodies... |
24 mm 5.6 | |
— | 34 mm 8 | |
— |
| TS-E 24 mm 3.5L | 35 mm 5.0 | |
— | 50 mm 7.1 | |
— |
| TS-E 45 mm 2.8 | 65 mm 4.0 | |
— | 90 mm 5.6 | |
— |
| TS-E 90 mm 2.8 | 125 mm 4.0 | |
— | 180 mm 5.6 | |
— |
| Key | ||||||
| Autofocus: | |
|||||
| Image stabilization: | |
|||||
List of EOS bodies that can AF at 8
Canon EOS bodies that have a high density, high precision auto-focus sensor with 45 AF points are able to autofocus at maximum apertures of 8.- Canon EOS-1D Mark IVCanon EOS-1D Mark IVThe EOS-1D Mark IV is a professional 16.1 effective megapixels digital single lens reflex camera camera body produced by Canon. The EOS-1D Mark IV is the successor of the Canon EOS-1D Mark III and was announced on October 20, 2009, just four days after Nikon announced the D3s...
- Canon EOS-1Ds Mark IIICanon EOS-1Ds Mark IIIThe EOS-1Ds Mark III is a digital SLR camera body by Canon designed for professional photographers. The Canon EOS 1Ds Mark III is successor to the EOS-1Ds Mark II and was announced in August 2007. The camera features a full-frame 21.1 megapixel CMOS sensor with 14 bit A/D converters for a total...
- Canon EOS-1D Mark IIICanon EOS-1D Mark IIIThe EOS 1D Mark III is a professional 10.1 megapixel digital single lens reflex camera camera body produced by Canon. The EOS 1D Mark III was announced on February 21, 2007 and is the successor of the Canon EOS-1D Mark II N and was first released in May 2007...
- Canon EOS-1Ds Mark IICanon EOS-1Ds Mark IIThe EOS-1Ds Mark II is a digital SLR camera body by Canon Inc. of Japan. It was the top model in the Canon EOS line of digital cameras until April 2007, with a full-frame 16.7 megapixel CMOS sensor. The EOS-1Ds Mark II had the highest pixel count available in a 35mm format digital SLR at the time...
- Canon EOS-1D Mark IICanon EOS-1D Mark IIThe EOS 1D Mark II is a professional 8.2 megapixel digital single lens reflex camera camera body produced by Canon. The EOS 1D Mark II is the successor of the EOS 1D.-Features:The EOS 1D Mark II features:* 28.7 × 19.1 mm CMOS sensor...
- Canon EOS-1D Mark II N
- Canon EOS-1DsCanon EOS-1DsThe EOS-1Ds is a full-frame 11.4 megapixel digital SLR camera body formerly made by Canon, released in the spring of 2003. Its dimensions are 156 mm in width, 157.6 mm in height, and 79.9 mm in depth. Its mass is 1,265 g.-Functions:...
- Canon EOS-1DCanon EOS-1DThe Canon EOS-1D is a 4-megapixel professional digital single-lens reflex camera launched in November 2001. It was Canon's first professional-level digital camera developed and released by themselves, the previous D2000 being a collaborative effort with Kodak. It has a 1.3x crop factor with a CCD...
- Canon EOS-1VCanon EOS-1vThe Canon EOS-1v is a 35mm single-lens reflex camera from Canon's EOS series, released in 2000, it is the final film camera in Canon's landmark EOS-1 series of professional cameras...
- Canon EOS 3Canon EOS 3The Canon EOS-3 is a 35mm film single-lens reflex camera for professionals and advanced amateurs built by Canon of Japan. It was introduced in November 1998and was offered as recently as 2007, though is no longer....
Although the upcoming Canon EOS-1D X
Canon EOS-1D X
The Canon EOS-1D X is a future digital SLR camera body by Canon Inc. It will succeed the company's flagship Canon EOS-1Ds Mark III and the Canon EOS-1D Mark IV. It was announced on October 18, 2011 and is expected to reach dealers in March 2012...
, the replacement for both the 1D Mark IV and 1Ds Mark III, will have 61 AF points, it will not autofocus with any lenses or lens/extender combinations whose maximum aperture is smaller than 5.6.