My review of the Canon T3i is positive. While searching for the best value camera for its price range, I decided on the Canon T3i. First of all it has an 18 mega pixel resolution, but when learning of the CMOS I found that the Canon APS-C is just a little bit smaller than other cameras in its price range. I was not dismayed about this fact. The camera does all I need it to do. The menu is easily followed and if you decide to use it to make videos, you will need a faster card than what Canon recommends. I purchased a 128 GB Class 10 card and it will not function using that card for videos. You will need a faster card with faster write speeds. The camera writes so fast to the buffer the class 10 card simply cannot keep up with the camera. I would suggest that you use a Class 10 card with a UHS-1 speed. Although Canon does not think a UHS-1 card is supported by this camera, I've read many reviews about using this card for videos. One reviewer stated that he called Canon support and they told him that a UHS-1 card CAN be used with the Canon T3i.
The kit lens does a pretty good job for general photography, but if you want to shoot wildlife you will need to get a telephoto lens for the camera. Canon makes a lot of really nice lenses for their cameras, however, I'll probably purchase a non-auto focus lens because I use the camera mostly in the manual mode and do not mind focusing on my subject. I think auto-focus lenses are overpriced and totally unnecessary. I guess I'm still a film camera user that has moved to the digital camera age. All of my 35mm film cameras never had any auto-focus lenses on them. They were not made at that time. I feel that if you are an amateur photographer then an auto-focus lens may be right for you. However, image stabilization is almost a must for any camera lens. When using non auto-focusing lenses I usually use a tripod to eliminate camera shake. I guess it just depends on what you want to do as a photographer.
If I had the money I surely would have purchased a Canon 5D mark iii as it is a full frame sensor camera. I consider the Canon 5D mark iii as the "Cadillac" of the full frame DSLR cameras.
Although the Canon T3i will not take HDR photos, it is still a remarkable little compact Digital Single Lens Reflex camera. The menu system is easy to use and the "Q" functions are very handy when making adjustments to your shooting style. As previously stated, I use my Canon almost entirely in the manual mode because I like to maintain full control of my shots, using a tripod when necessary. I like the T3i's ability to use a flash while using very slow shutter speeds when shooting at night. It will light up the foreground just enough while using a long exposure for photographing the moon.
My photographer buddy sold me on the Canon line of cameras even though I'd looked at other brands. I think that I shall get much use out of my Canon T3i and when I want to update to a full frame camera, I'll probably get the Canon 5D mark iii.
I just looked at an e-mail from Canon and they have just released the Canon T6i, a 24.2 mega pixel camera that really looks good with its wi-fi capability. What really impressed me is their new 50.6 mega pixel camera, the 5Ds and 5Dsr, but I'm sure by the time I get to that point they will have released an even more superlative camera than the 5Dsr. Canon just keeps making great cameras.