Canon EF 1200mm lens

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EF 1200mm f/5.6L USM
Key features
Maker: Canon
Image stabilization: No No
Ultrasonic motor: Yes Yes
Application: Super Telephoto
Technical data
Type: Prime
Focal length: 1200mm
Aperture (max/min): f/5.6 - f/32
Construction: 10 groups / 13 elements
# Diaphragm blades: 8
Close focus distance: 45.9'/14m
Max. magnification: 1:11.1
Physical
Max. diameter: 8.9"/22.8cm
Max. length: 32.9"/83.6cm
Weight: 36.37lbs/16.5kg
Filter diameter: 48mm (drop-in)
Accessories
Lens hood: Built-In
Case: Exclusive
Angle of view
Horizontal: 1°45'
Vertical: 1°10'
Diagonal: 2°05'
History
Introduced: July 1993
Retail info
MSRP US$ $89,579

The EF 1200mm f/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. When used on a 35 mm film camera, or a digital body with a full frame sensor, it has a Focal Length of 1200mm. When used on a digital body with a crop factor of 1.6x, such as a Canon EOS 40D or 450D, it provides a 35mm field of view equivalent to that of a 1920mm lens. With a 1.3x body, such as a Canon EOS-1D Mark III, the field of view is equivalent to that of a 1560mm lens.

The lens was aimed at sports and wildlife photographers, and is both relatively expensive and extremely rare. Canon described it as "the world’s largest interchangeable SLR AF lens, in terms of both focal length and maximum aperture."[1]

[edit] Technical information

The EF 1200mm f/5.6L USM is a professional L series lens, that is now discontinued.[2] This lens is constructed with a metal body and mount, and with plastic extremities and switches. The features of the lens are: a wide rubber focus ring that is damped, a distance window with infrared index, the ability to limit the focus range, a focus-preset mechanism, and the ability to set the AF speed. The maximum aperture of f/5.6 gives this lens the ability to create depth of field effects. The optical construction of the lens contains 13 lens elements, including two large fluorite lens elements. The lens uses an inner focusing system, powered by a ring type USM motor. Manual focusing is rendered by wire: the lens does not have a direct mechanical connection to the focusing ring, instead detecting rotation of the focusing ring and using the lens motor to drive the lens elements. The manual focus speed is adjustable: 1 = 1/2 standard (for precision), 2 = standard and 3 = 2x standard (for fast-moving subjects). The front of the lens does not rotate nor extend when focusing. It does not have a typical rotating tripod mount like other telephoto lenses. However, the lens mount can be rotated and locked, allowing the lens to be used in horizontal and vertical shot formats. It is compatible with the Canon Extender EF teleconverters.

The lens comes with its own heavy-duty tripod and case, and was built only by special order.

Few of these lenses exist; Sports Illustrated magazine owns two of them, as does Canon Professional Services and James Jannard, the billionaire founder of Oakley and RED Digital Cinema. Recently the New York based B&H Photo retailer listed one for sale in their "Used" department for $120,000.[3] Up Close with the Canon EF 1200mm f/5.6 L USM Lens[4].

[edit] Notes

  1. ^ Canon Europe product page
  2. ^ ""Canon Hongkong Co. Ltd - discontinued products page for 2005"". Canon Hongkong Co. Ltd.. 2006. http://www.canon.com.hk/en/Consumer/Product/Discontinued.aspx?series_id=47. Retrieved 2008-10-08. 
  3. ^ ""B&H Product page for the 1200mm Canon f5.6L USM"". B&H Photo. 2009. http://www.bhphotovideo.com/c/product/800622963-USE/Canon_2527A001_Super_Telephoto_1200mm_f_5_6L.html. Retrieved 2009-10-26. 
  4. ^ http://www.bhphotovideo.com/find/newsLetter/Canon-EF-1200mm.jsp

[edit] External links


Retrieved from "http://en.wikipedia.org/wiki/Canon_EF_1200mm_lens"
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