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Thursday, February 14, 2013

Canon Rebel T4i Review

Offering video on an SLR was a neat trick, but the inability to autofocus while shooting like you can with most common camcorders was disappointing. Canon's latest digital SLR camera, the Rebel T4i, attempts to address the issue with a new Hybrid AF system and two new lenses designed to make shooting video more like consumers expect.Canon's included a host of other improvements as well, bringing the Rebel T4i into closer contention with both compact system cameras and even smartphones. Those improvements include a faster frame rate of five frames per second, nine cross-type AF points, a stereo microphone, and a 3-inch articulating LCD with an integrated touch panel. And the best news about the touch panel is that it's capacitive, not resistive. That means it works more like current smartphones and tablets, requiring only a gentle touch with a finger. Easily my favorite change to the Canon T4i is the new quieter shutter mechanism, which operates without that Rebel winding sound that's always spoiled the camera for me.

Physically very similar, but not identical to its predecessor, the Canon T4i is just a little thicker front to back than the T3i, measuring 133.1 x 99.8 x 78.8mm compared to the T3i's 133.1 x 99.5 x 79.7mm. Weight is 20.3 ounces (1.27 pounds; 575g) including body, battery, and card, or 36.6 ounces (2.29 pounds; 1039g) with the 18-135mm STM kit lens added. With the 18-55mm kit lens, weight is 27.3 ounces (1.71 pounds; 774g), again including battery and card.


From the front, there's some minor restyling, but all major elements are in the same places. The infrared remote port, the shutter button, the self-timer lamp, the lens release button and below that, tucked against the side of the mount, the Depth-of-field preview button. The lens mount accepts both EF and EF-S mount lenses, as with all of Canon's APS-C cameras.


Shown mounted here is the new 18-135mm IS STM lens, and the Canon T4i is the first camera in the line to support the kind of live continuous autofocus that gives the lens significance. Where other lenses would seek noisily for focus, the new STM lens seeks more slowly and quietly to avoid introducing noise to captured video. Live view autofocus for stills is also less cumbersome, without the noisy seeking or flipping mirror. This is the only kit lens that's STM, however, and it comes at a higher price of US$1,199.00. The 18-55mm IS II lens is bundled for US$950, and it's available body-only for US$850.
Just in front of the hot shoe are the new stereo microphones, imitating other competing designs. Canon didn't mention it, but often the stated goal for putting the mics here is to reduce noise from hand and lens movements. Canon removed the Movie position from the Mode dial, instead placing it on the power switch. They also removed the Display button from the top deck; indeed from the camera entirely. One reason they were able to remove the Display button is that they added back the infrared proximity sensor that turns off the LCD when you bring your eye to the viewfinder. It used to reside below the viewfinder, but now it's above, and just below the hot shoe.


Most elements in the back are in the same positions; slightly different button shapes and icon locations, but it should otherwise be familiar to upgraders. The thumbgrip area is larger. The LCD is a ClearView II monitor with 1.04 million dots of resolution, and it's said to have a smudge-resistant coating, which will be important when using the touchscreen. In my use, fingerprints nevertheless collected on the screen, unsurprisingly.
What was surprising was how much I enjoyed using the touchscreen. When I first encountered the T4i's touchscreen, we'd just finished our review of the Canon 510HS, a pocket camera with a resistive touchscreen that was very difficult to use. Eventually we realized we had to touch harder to make it work, or else use the stylus. But when I started using the Canon T4i's new touchscreen I found it as responsive as I'm used to on my iOS and Android devices. Suddenly instead of being a pain, the touchscreen became more fun. There's just something enjoyable about technology when it works, and works well.


Changing settings via the Quick Menu is made a little easier with the touchscreen. You can either touch the physical Quick Menu button or its equivalent in the lower left corner of the screen. Then the screen becomes active and you can just press on any element to make adjustments. Swiping between photos in Playback is easier than I've seen on other cameras, and pinch-zooming is pretty easy too.
As for the LCD, naturally it does get fingerprints, but they're not as bad as usual. The screen is sharp and contrasty, quite good outdoors in bright sunlight, and its off-axis viewing is pretty impressive. Canon also minimized the blue sheen that was a little annoying on the T3i.

By : Shawn Barnett, Mike Tomkins, and Zig Weidelich

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