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Category:Canon
Category:Objectifs
Category:Reflex -> Objectif

Canon EF 800mm f/5,6L IS USM

25 janvier 2008 par Pascale Dechamps

Canon annonce l'arrivée en juin 2008 d'un nouveau télé objectif, le Canon EF 800mm f/5,6L IS USM. Cet objectif de très longue focale convient pour les photographes de sports extérieurs ou de nature. Il est doté d'un stabilisateur d'image.

Canon a aussi annoncé l'arrivée du Canon EF 200mm f2 L IS USM.

Extrait du communiqué de presse

Canon expands professional EF lens range with two new telephoto ‘L’ models

United Kingdom / Republic of Ireland, 24 January 2008: Canon today unveils two new professional EF lenses: the EF200mm f/2L IS USM and EF800mm f/5.6L IS USM. Equipped with Canon’s latest 4-stop Image Stabilizer, both models incorporate L-series lens optics and construction to deliver class-leading performance and operability.

With its large f/2 aperture, the EF200mm f/2L IS USM will appeal to photographers who require a brighter lens for indoor sports and portraiture photography. Improvements over the EF200mm f/1.8L USM include a fluorite lens element for better elimination of chromatic aberrations, a circular aperture diaphragm and a significantly lighter, more compact design.

The EF800mm f/5.6L IS USM enhances Canon’s super telephoto range with the longest focal distance of any EF lens on the market. Light enough to allow for handheld shooting, it is expected to be popular with sports, news and wildlife photographers.

Benefiting from UD and fluorite lens elements along with a raft of new optical technologies, both lenses offer professional photographers an exceptional degree of image quality – as standalone lenses and when combined with the Canon EF 1.4x extender.

Key features:

EF800mm f/5.6L IS USM:

4-stop Image Stabilizer with 2 modes
2 x fluorite, 1 x UD and 1 x super UD lens elements
Ring type USM auto focus with fulltime manual override
Circular aperture diaphragm for pleasing background blur
Supra Spectra coatings to reduce ghosting and flare
Magnesium alloy body – 4.5kg
Both lenses feature environmental seals to protect against dust, rain and humidity.

Pricing & Availability

The EF200mm f/2L IS USM will be available from April 2008 priced at £4499.99 RRP inc. VAT / €6659.99 RRP inc. VAT
The EF800mm f/5.6L IS USM will be available from June 2008 priced at £8999.99 RRP inc. VAT / €13299.99 inc. VAT

Image Stabilizer
The 4 stop Image Stabilizer (IS) significantly extends the low light performance of both lenses. Photographers normally shooting handheld at 1/1000 sec can switch on IS to obtain a similarly steady and blur-free result with a shutter speed of just 1/60 second. For shooting immobile subjects, Mode 1 corrects for movement in the image along both the horizontal and vertical axes. For shooting while panning horizontally to follow a moving subject, Mode 2 turns off vertical correction and prevents the effect of dragging the subject back through the frame.
IS switches off automatically when the camera is mounted on a tripod, thus preventing feedback loops between the IS sensor and internal motor vibrations.

L-series optics
Both lenses incorporate a newly designed optical system that limits lens size while improving image clarity over the total image area. A combination of fluorite, UD (Ultra-Low Dispersion) and Super UD glass elements are used to eliminate the secondary chromatic aberrations that otherwise reduce sharpness and introduce colour fringing. Canon’s patented Super Spectra lens element coatings reduce reflections off lens surfaces, ensuring undistorted images with natural colour balance and minimal ghosting or flare.

Lightweight design
The lenses employ magnesium alloy components to significantly reduce weight and size. The EF200mm f/2L IS USM has the lightest body in its class, weighing only 2.52 kg. Despite its longer focal length, the EF800mm f/5.6L IS USM is a similar length to the EF600mm f/4L IS USM at 461mm, but weighs 860g lighter. In keeping with Canon’s Kyosei philosophy of living in harmony with the environment, the lenses feature only lead-free glass.

Superb operability
Several features are incorporated to assist photographers in the field. The AF stop button at the front of each lens allows photographers to temporarily turn off auto focus. The button can be configured to control AF mode, IS, and AE lock with the EOS 40D, EOS 5D, EOS-1D Mark III and EOS-1Ds Mark III The EF200mm f/2L IS USM and EF800mm f/5.6L IS USM also feature a focus preset function that electronically memorised a user-selected focus position – particularly helpful for sports or wildlife photographers.