Canon EF-S 17-85mm f/4-5,6 IS USM Specifications

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Product
Name Canon EF-S 17-85mm f/4-5,6 IS USM

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Manufacturer Canon
Release Date and Price
Release Year 2004
MSRP 599 USD
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Lens Type
Lens Type Normal Zoom Lens
Zoom or Prime Zoom lens (with the ability to zoom in and out)
Mount and Compatibility
Mount Canon (see compatible cameras)
Compatibility Designed for APS-C cameras (see compatible cameras)
Focus
Closest Focusing Distance 35 cm
Autofocus (AF) Yes
Built-in autofocus (AF) motor Yes (more info)
Aperture
Maximum aperture f/4-5,6
The lens aperture and brightness varies at different focal lengths.
f/4 at 17 mm
f/5,6 at 85 mm
(Read more)
Optics
Elements: 17 elements / 12 groups
Focal Range: 17-85 mm

This is a "EF-S" lens, designed for APS-C sensors, and will have a focal length equivalent to:  27-136 mm

Read more on the cameras impact on the perceived focal length
Physical
Diameter 78 mm
Length 92 mm
Weight 475 g (see the total weight, camera+lens)
Other
Image stabilization Yes, IS
Filter Filter Thread, 67 mm
Lens Hood EW-73B (not included)
Tripod mount No (Read more)
Weather sealing No

Product description from Canon

At launch 2004 Canon wrote this regarding Canon EF-S 17-85mm f/4-5,6 IS USM :

"Equivalent to a 28-135mm lens, this new EF-S lens brings true wide-angle to tele coverage to EOS 20D and Digital Rebel shooters. It has Canonīs Image Stabilization system, allowing safe hand-holding at speeds up to three stops slower than otherwise possible. And of course, itīs optically optimized for digital SLRs. A ring-type USM means both fast and silent AF, as well as full-time manual focus when in the AF mode.

The Canon Zoom Lens EF-S17-85mm f/4-5.6 IS USM is the ideal standard zoom lens companion for Canonís EOS 20D digital SLR camera, offering a 5x zoom ratio that enables broad shooting range from wide angle to telephoto. While offering a wide focal range equivalent to 27-136 mm in the 35 mm format, the lensís optical design capitalizes on the merits of the reduced image circle to realize a compact, lightweight body that is 4.8 mm shorter and 65 g lighter that the comparable EF-series lens. Moreover, the effective positioning of a double-sided glass-molded aspherical lens element ensures exceptional image quality throughout the zoom range. The lens incorporates Canonís high-performance Image Stabilizer (IS), which compensates for approximately three shutter speeds to allow the handheld capture of shots that would otherwise be blurred by camera shake. Other performance-enhancing features include a fulltime manual focus override, and a 0.35 m minimum focusing distance throughout the entire zoom range for close-up magnifications. The EF-S17-85mm f/4-5.6 IS USM zoom lens features an environmentally conscious design that anticipates the EUís Restriction of Hazardous Substances in Electrical and Electronic Equipment (RoHS) Directive, which is due to take effect from July 2006. The RoHS Directive requires the elimination* of lead, mercury, cadmium hexavelent chromium, polybrominated diphenyl ethers (PBDE) and polybrominated biphenyls (PBB)."


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