From the Manufacturer
This exciting new zoom lens provides ultra wide-angle coverage to the EOS 20D and Digital Rebel shooter. Equivalent to a 16-35mm zoom, it offers excellent performance and optics designed from the ground-up for digital SLR use. Three Aspherical lens elements, plus a Super-UD element, assure image quality. Its ring-type USM means fast and silent AF along with full-time manual focus. It focuses as close as 9.5 inches.

Features

• Excellent optical quality and true wide-angle coverage with select digital SLRs
• Superior AF performance and speed, with full-time manual focus by simply turning ring
• Close-focusing to 9.5 inches — fill the frame with subjects as small as 3.6 x 5.4 inches
• Relatively compact size and light weight for an ultra-wide zoom lens
• Inner focusing system (no front element rotation); length doesn’t change if zoomed
• Circular aperture design — natural highlights, even stopped down two stops
• Electronic diaphragm — manually-set apertures stay constant from f/4.5 thru f/22
• EF-S lens mount — exclusively for EOS 20D and Digital Rebel bodies

Product Description
This exciting new zoom lens provides ultra wide-angle coverage to the EOS 20D and Digital Rebel SLR Digital-camera systems. Equivalent to a 16-35mm zoom, it offers excellent performance and optics designed from the ground-up for digital SLR use. Three Aspherical lens elements, plus a Super-UD element, assure image quality. Its ring-type USM means fast and silent AF along with full-time manual focus. It focuses as close as 9.5 inches. Circular aperture design — natural highlights, even stopped down two stops Electronic diaphragm — manually-set apertures stay constant from f/4.5 thru f/22 EF-S lens mount — exclusively for EOS 20D and Digital Rebel bodies Focal length 10 - 22 mm / 35 mm FOV 16 - 35 mm equivalent Construction - 13 elements in 10 groups Diaphragm - 6 blades Maximum aperture F3.5 - F4.5 / Minmum aperture F22 - F27 Closest focus 0.24 m Max magnification 0.17x (at 22 mm) AF actuator USM with full-time manual focus Filter diameter - 77 mm (accepts 77mm optional filters) Unit Dimensions - 83.5 x 89.8 mm (diameter x length) / Weight - 385 g.

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Having helped create the ‘affordable’ DSLR, Canon has taken a while to respond to the latest, comparatively wallet-friendly offerings from the likes of Nikon and Sony. It can produce great images at any of its ISO settings and, viewed as a whole, makes a great first DSLR.

Cameras are not just the product of engineering, they are also the result of marketing considerations - creating a product people will want to buy at a price they find attractive. The result is that many cameras in this market segment are shorn of some of the features of their big brothers in the name of ‘product differentiation.’ It’s a reality that can upset some people (often the owners of more expensive cameras), but we, like the marketers, need to consider whether the removed features will have an impact on the buyer the camera is aimed at. For example, it’s been a Canon tradition to miss spot metering off its least expensive DLSR. This is annoying (it’s certainly a more useful feature than the bracketing function removed from the baby Nikons), and worth highlighting but probably not a big issue for the majority of users.

In every other respect, Canon seems to have gently toned-down the specification so that it rates slightly less well in all the metrics that appear on shop shelf tags - pixel count, continuous shooting speed, number of AF points and screen size. If you regularly find yourself shooting bursts of images, you’re going to have to look elsewhere.

The 1000D is a difficult camera to judge while its price still hasn’t adjusted to a realistic market level, as it’s not a camera that stands out enough from its competitors to justify a major price difference. However, ergonomic foibles aside, it’s a solid little camera that is easy to use and produces consistently good images across all of its sensitivity settings. It’s certainly a safe bet and one of the most consistent offerings in the sector (it has few annoying quirks or niggling loose ends) and its all-round competance, excellent high ISO performance and class-leading image quality will win it a lot of friends.

1 Lens Hood Bayonet/Filter Thread

The front edge of your lens includes several features to allow mounting accessories such as lens hoods and filters. The bayonet system ensures that the lens hood is oriented properly on the lens.

2 Zoom Ring

Zoom lenses have a ring that can be twisted to magnify or reduce the image.

3 Focus Ring

The focus ring is twisted to bring the image into sharp focus when focusing manually, or to fine-tune focus set automatically with lenses that allow overriding the autofocus system.

4 Focus Scale

These markings show the current focus point.

Other Lens Features

Some lenses have an Automatic/Manual focus switch that overrides its counterpart on the camera body. Lenses with an extensive focus range (particularly macro lenses) may have a Lock switch to lock out either the most distant focusing range or the closest.

5 Mode Dial

This dial changes the exposure mode or programming used to calculate exposure. All dSLRs will include program (the camera sets user-tunable exposure); manual (user sets both shutter speed and aperture); aperture priority, also called Av (user chooses f/stop and the camera selects a shutter speed); and shutter priority, also called Tv (user selects shutter speed and the camera chooses f/stop).

6 External Flash Hot Shoe

Speedlights designed to work with a specific camera exchange information with the camera. This information exchange allows fully-automatic flash exposure with through-the-lens metering.

7 Monochrome Status LCD

This display screen shows information about the camera’s current settings, including number of exposures remaining, shutter speed, f/stop, ISO, battery status, or focus/exposure mode in use. Some cameras provide minimal information on this screen (such as number of exposures left) even when the camera is turned off.

8 Status LCD Backlight Button

Pressing this button activates a light underneath the status LCD so the information can be viewed in dim light or total darkness.

9 EV Button

Holding down this button allows adjusting the exposure by adding or subtracting exposure values (EV) when a command dial is spun.

10 Exposure Zone/Method Selector

Holding down this button while spinning a command dial allows you to change the area used for calculating exposure.

11 Shutter Release

If the metering system has switched itself off, it will revive and begin measuring exposure again. If your camera has been set to fix exposure and focus point when the shutter release is partially depressed, those parameters may be locked.

12 On/Off Power Switch

It powers your camera on and off.