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Canon's new 10-megapixel EOS 40D digital SLR has many significant new features that will compete on many levels with their higher-priced EOS 5D and the latterly released EOS-1D Mark III. For instance, power the camera off or on and the new automated anti-dust feature cleans the sensor. The LCD is now 3", making more space for your image and important info, including a three-color-channel histogram. The 40D introduces Live View for realtime composing on the LCD and, for the 1st time, crucial ISO info is included in the optical view-finder. The menu has been effectively reorganized and rather than the 30D's exasperating single continuing long row of options, there's now a simplified arrangement of tabs with options filling less than one screen. The shooting mode dial incorporates the standard and presets modes, and 3 time-saving, customizable modes that permit you to select particular camera-setting combos for often used eventualities.

The 40D features a new DIGIC III image processor, 14-bit conversion process, and a new compressed sRAW format that is twenty five percent the dimensions of a full RAW file for more efficient employment of the space on your CompactFlash ( CF ) memory card.Like the 30D, the 40D's body has a solid feel. The rubberized grip has a contoured mould for your index finger and the control wheels and buttons are inside reach. The CF card and battery compartments are now weatherszed ( not water-proof ) and i fitted with rubber seals. The camera is more respondent than its forebears. In continual shooting mode it sounds rather like a machine gun firing off 6.5 frames per 2nd at full resolution ( RAW ), with a maximum burst of seventeen frames.

That sure is a sweet sound for sports and wildlife photographers. The viewfinder's 9 diamond-shaped autofocus points utilise a new, more delicate cross-type sensor and focus more speedily than the 30D, even in low light. Live View is enabled in the menu and turned on by pressing the set button on the rear control dial. This locks up the mirror, permitting the lens to at once project the image onto the LCD. As the mirror is up, Live View disables autofocus, and though there is a workaround by employing the AF-on button to swiftly drop the mirror to autofocus, you will probably lose the shot if you are tracking a moving subject. Otherwise, manual focus is trustworthy and correct with the utilisation of Live View's portable targeting frame together with the five 10x zoom button, yielding a magnified view of your subject for easy targeting.

Live View is handiest when the camera is on a tripod and I found the optical range-finder better for hand-held shots. Composing photographs on the LCD is good even in bright, out of doors light and it's cool to have a live histogram to adjust the exposure for optimum tonal quality.Live View drains the battery if exploited a lot and shuts down mechanically if the sensor gets too hot. For the 1st time on a Canon prosumer camera, you can view and adjust your image in realtime on a P.C. screen using the included remote use software and connecting the 40D with a USB wire. It's particularly impressive and permits you to remotely adjust the ISO, aperture, metering mode, white balance, trigger the shutter, focus the lens, and masses more. I made 17x22 " prints using files shot at ISO one hundred 1600.The quality was wonderful up to eight hundred and good even at 1600, but at that point noise became more common in the shadows and highlights. This is a fabulous camera at a nice price.