When was canon 550d released

Copyright info. Like the Canon 7D, you can input Copyright information right on the Canon T2i, as well as delete it at will. It was a first in that camera for Canon's prosumer line, and now it's on the consumer Rebel line as well.

The Canon T2i also features a new LCD panel, which now offers a aspect ratio, matching that of the image sensor, rather than the aspect ratio panel which was used on the T1i. The new panel still has a 3.

Each pixel still consists of three separate colored dots red, green and blue , for a total count of just under 1. The Canon T2i's degree LCD viewing angle isn't quite as wide as that of the angle possible on the T1i, and the total display area is just slightly smaller, although neither reduction is terribly noticeable in use. Improved Movie mode. Another area where the Canon EOS Rebel T2i has inherited significant upgrades from the 7D is in its high definition video capabilities.

The previous T1i model offered a maximum resolution of p 1, x 1, pixels , but with a non-standard and rather low rate of 20 frames per second, making this mode perhaps of limited use. Lower-resolution options of p 1, x pixels and VGA x pixels had a more useful 30 frames per second rate, but all video modes were also hindered somewhat by offering only automatic exposure, and monaural audio from a built-in microphone.

The Canon T2i corrects every one of these issues, with a new stereo microphone input jack, manual control of video exposure available, and a wide range of standard video frame rates on offer. At p resolution, the user can select between 24, 25, and 30 frames per second. For p and VGA shooting, both 50 and 60 fields per second modes are available. Users can also edit movies in camera, including the ability to chop off beginning or ends of movies, but only in one-second increments.

The first, dubbed "Movie Crop" mode, is available only when shooting at standard-definition VGA resolution. It works by simply cropping and recording the center-most x pixels from the sensor. This yields an effective 7x fixed zoom without interpolating the video. Of course, simply cropping the center of the image means that everything including image noise will be recorded at , so video has noticeably higher quality with the crop disabled. Still, for consumers who may well not be able to afford expensive telephoto lenses and only need standard-def output, it's an interesting feature.

The second movie feature specific to the T2i -- and rare among its DSLR brethren from any manufacturer -- is the ability to use autofocus during moving recording. Continuous autofocus isn't available, so you have to manually trigger single AF operations as needed with a half-press of the shutter button. The feature is something of a tradeoff, because the AF operation is clearly visible in the video, even if Canon's contrast detection AF implementation doesn't hunt around the point of focus as much as some we've seen.

AF noise is also very clearly captured on the movie's audio track, at least when using the internal microphone and mm kit lens -- using quieter USM lenses can mitigate this somewhat, and AF noise can be avoided altogether by using a good directional mic on a shock mount. Pros will certainly want to stick with focusing manually and can choose to disable AF during movie capture to prevent accidental operation , but in the consumer market at which Canon's Rebel cameras are aimed, it makes sense to give customers the choice as to whether they feel the convenience of AF is worth putting up with the drawbacks.

HDMI output. In layman's terms, this allows you to use your compatible high-def display's remote control to operate certain camera functions via the same cable through which the video signal is passed. Functions that can be controlled from the TV remote include single image playback, index display, shooting info display, image rotation, slide show, and movie playback.

The Canon T2i comes with the same kit lens that shipped with the XSi and T1i: the image-stabilized mm EF-S lens that so impressed us at its debut.

Equivalent to a mm lens on a full-frame 35mm camera, this is a good mid-range zoom lens that is quite light. Optical image stabilization technology delivers sharper shots even in low light.

Canon claims you can shoot at up to four stops slower than normal and still get a stable shot. If you're a fairly steady shooter, it seems to be true. Your results may vary, and remember that image stabilization compensates for camera movement, not for subject movement, so when shooting in low light tell your subject to hold very still, or shoot with a faster shutter speed at a higher ISO.

Storage and battery. Direct support for Eye-Fi wireless cards has found its way into the Canon T2i, complete with a dedicated status display that only appears if the card is installed. The new display shows when a card is connecting, has connected, is transmitting, and when a card has a problem connecting. That's about a ten percent improvement over the T1i's battery life, but still below average for an SLR.

It duplicates the shutter release and control wheel, as well as AE lock and focus point buttons for vertical-format shooting. Those who have trouble with the smaller grip on the Canon Rebel series will find that the battery grip makes the camera more satisfying to use; and those who frequently shoot in portrait orientation will enjoy the vertical shutter release, which allows you to shoot with less strain.

Loads of resolution. Not surprisingly given its heritage, the T2i's sensor gathers loads of detail, and begs for a really good lens. The mm kit lens is impressive for its cost, but in this detail-rich garden shot, its limits appear to have been reached.

Viewing full images, there are no longer any black borders at the edges of the screen. This means a slightly larger review than was previously the case, even though the actual screen area has fallen just slightly. I understand that the viewing angle has also been reduced slightly, but this wasn't really noticeable -- the Canon T2i's display is still easily visible from a wide range of angles, perfect for everybody to huddle around and review group portraits.

The Canon T2i only has one new button, but the profiles of several other buttons have also been changed as part of accommodating the wider LCD display. I found the variation in button size and shape helpful, making it significantly easier to identify buttons by touch alone, and saving me removing my eye from the viewfinder so frequently. The only control element on the T2i that I felt could use some improvement was the Main dial, situated right behind the Shutter button.

I found its resistance significantly too high, and as a result, had to press my fingertip against its knurled surface to make settings changes. When making a lot of adjustments with the dial -- shooting in Priority or Manual modes, for example -- my hand quickly tired, and my fingertip started to feel a little sore. Blown highlights. The default exposure for this shot rendered the white bricks with blown highlights, and the red channel was badly clipped on the truck's yellow and red paint.

In terms of image quality, the Canon T2i performed as well as I'd expected -- not surprisingly given the close relationship between its image sensor, and that of the prosumer EOS 7D. It was perhaps straining the optical limits of its mm kit lens, and I'd have loved the opportunity to shoot using some of Canon's higher-end glass, but unless viewed at resolution I found its images to offer plenty of detail, and with relatively low noise. I found Canon's menu design on the T2i was among the clearest and easiest to understand compared to current digital SLRs, but I did find a few elements somewhat confusing.

Several functions related to Live View are adjusted from a dedicated Live View function settings page, but it's not accessed from the Record menus, where I'd expect to find it.

Instead, it's rather confusingly located in Setup Menu 2. The EOS D also allows photographers to view their images and video in unhindered clarity. The anti-reflective, water-repellent coating also makes it easier to see the screen in bright conditions and from a variety of angles.

It features bigger, more intuitive buttons which have been redesigned following feedback from users. Based on this feedback, the EOS D also features an additional button on the new, battery grip, allowing aperture settings to be changed when shooting with the camera in a vertical position, without having to reorient the body.

For EOS D photographers, shooting great pictures and video is just a first step. And it incorporates a Digic 4 image processor. Using HD movie on the D, photographers can control the shutter speed, aperture and equivalent ISO — allowing control of depth-of-field, for example. The EOS D has a built-in microphone and will be compatible with an optional external microphone 3.

Based on its within category standings, the camera earns a 2. Read on to find out more about the camera's size, sensor, features, reception by expert reviewers, and how it compares to other digital cameras.

The physical dimensions of the Canon D relative to a credit card are illustrated in the side-by-side display below. Three successive views from the front, the top, and the rear are shown. All width, height and depth measures are rounded to the nearest millimeter. The table below summarizes the key physical specs of the Canon D alongside a set of similar cameras. If you want to review a particular camera pair side-by-side, just move across to the CAM-parator tool and choose from the broad selection of possible comparisons there.

The listed prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down.

Then, after the new model is out, very good deals can frequently be found on the pre-owned market. The imaging sensor is at the core of digital cameras and its size is one of the main determining factors of image quality. A large sensor will tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range , and richer color-depth than smaller pixel-units in a sensor of the same technological generation. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to isolate a subject from the background.

On the downside, larger sensors tend to be more expensive and lead to bigger and heavier cameras and lenses. Within the spectrum of camera sensors, this places the Canon D among the medium-sized sensor cameras that aim to strike a balance between image quality and portability. For most cameras, data on sensor performance has been reported by DXO Mark.