Canon has introduced the EOS 40D, which features a 10.1-megapixel CMOS sensor, 6.5 frames per second burst performance, a newly developed AF system and 3.0-inch LCD with Live View mode.

The camera benefits from the new EOS technology platform introduced earlier this year with the professional EOS-1D Mark III. Canon’s DIGIC III processor delivers responsive operation, improved colour rendering and near-instant start-up time. The EOS Integrated Cleaning System1 combats sensor dust, while a strong magnesium alloy body with weather resistance ensures lasting durability.

Canon says that its third generation CMOS sensor improves on its predecessor with redesigned pixels that keep noise to a minimum. The EOS 40D maintains high image quality up to ISO 1600, expandable to H:3200 for situations where flash use is not permitted or desired. Highlight Tone Priority mode gives wedding and landscape photographers the option to boost dynamic range for highlights when shooting above ISO 200 – reproducing more tonal detail from wedding dresses, clouds and other light coloured objects.


The DIGIC III processor powers a burst rate of 6.5 fps, working with the image buffer to handle up to 75 Large JPEGs (17 in RAW) without pause. Images are processed at 14-bits for a greatly expanded colour depth, providing smoother
gradations and exceptionally accurate colour reproduction.

A key advancement of the EOS 40D is its new 9-point cross-type AF system. All nine AF points can achieve focus on both horizontal and vertical planes. A central AF point is capable of accurate focusing up to aperture f/2.8, with eight outer points working up to f/5.6. In response to requests, the dedicated AF Start (AF-ON) button allows photographers to execute auto focus with their thumb.

The Live View mode simplifies shooting from awkward angles such as ground-level macro or mounted tripod shots. The 3.0-inch LCD displays a real-time image in Live View mode, including a selectable grid overlay and a live histogram that simulates image exposure. The AF-ON button can be configured to flip the camera mirror momentarily and engage auto focusing. For the studio environment, remote Live View lets the photographer compose, adjust settings and capture the shot from a PC using the supplied EOS utility software.


The EOS 40D is fully customisable to the photographer’s shooting preferences. The mode dial contains space for three sets of user-defined settings, allowing the photographer to switch instantly between several shooting setups. A new My Menu tab provides quick access to frequently used settings, while 24 custom functions allow photographers to fine-tune camera operation and controls. The ability to change the focusing screen – with two additional screens available – adds further versatility.

For easier operation of system accessories, settings for the Speedlite 580EX II and new Wireless File Transmitter WFT-E3 can be controlled directly from the LCD.

The EOS 40D is supplied with a software suite to streamline the photographer’s workflow. This includes Digital Photo Professional (DPP), a powerful RAW converter that provides complete RAW image processing control. DPP integrates with cameras features such as Dust Delete Data and Picture Styles. Users can now also create their own custom Picture Styles with the supplied Picture Style Editor software. The camera also comes with EOS Utility, ImageBrowser/ZoomBrowser and PhotoStitch.