Updated (February 2011): Compare the Canon Rebel T3i vs Sony SLT-A55

Sony SLT A55 vs Canon Rebel T3i

Sony SLT-A55


Canon Rebel T3i



Reasons to buy the Sony SLT A55

Great image quality
Overall image quality
Great color depth
Color depth
23 bits
Wide dynamic range
Dynamic range
12.4 EV
Large viewfinder
Viewfinder size

Reasons to buy the Canon Rebel T3i

Screen resolution
High resolution screen
1,040k dots
Supports 24p
24p movies
For that film look
External mic jack
External mic jack
Record higher quality audio with a microphone
Sensor cleaning
Self cleaning sensor
Avoids dust in your photos


Explore our gallery of 50 sample photos taken by the Canon Rebel T3i.
Explore our gallery of 50 sample photos taken by the Sony SLT-A55.


Sony SLT-A55 Competitors

Sony SLT A58

Sony SLT A58

Entry-level DSLR

$626 with 18-55mm lens

Supports 24p Supports 24p
True resolution Much higher true resolution
Screen resolution Much lower resolution screen
Sony SLT-A77

Sony SLT A77


$1,640 body only

$1,400 with 16-50mm lens

Supports 24p Supports 24p
Movie format Lower frame rate movies
Startup delay Much more startup delay
Sony A7

Sony A7

Mirrorless interchangeable-lens

$948 - $2,698 body only

$1,098 with 28-70mm lens

Low light performance Much lower noise at high ISO
Cross type focus points Many more cross-type focus points
3D Doesn't take 3D photos

Canon Rebel T3i Competitors

Canon Rebel T5i

Canon Rebel T5i

Entry-level DSLR

$431 - $649 body only

$535 - $599 with 18-55mm lens

HDR Has in-camera HDR
Autofocus Video autofocus
Color depth Worse color depth
Canon EOS Rebel T5

Canon EOS Rebel T5

Entry-level DSLR

$325 body only

$350 - $399 with 18-55mm lens

Autofocus Video autofocus
Size Smaller
Screen resolution Much lower resolution screen
Canon EOS Rebel T6i

Canon EOS Rebel T6i

Entry-level DSLR

$749 - $801 with 18-55mm lens

Cross type focus points Many more cross-type focus points
Dynamic range More dynamic range
Viewfinder size Smaller viewfinder


Sony SLT-A55

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Canon Rebel T3i
Rebel T3i

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Showing 15 comments

Spaced Out (1:11 AM, January 31, 2012)
Did you ever figure out the problem with the over heating? Was it just a defect or something?
Kaylacavanagh (11:36 PM, January 11, 2012)
The Sony A55is FAR superior to the T3i (having tried both). Get the Sony and don't look back! This rating system is biased because it is not as popular of a brand.
Tom (2:03 AM, January 11, 2012)
I know many people will tell you Canon makes better Cameras but Sony is actually much better. Dont get me wrong Canon cameras are fantastic but sony has better ones specially with the carl zeiss Lenses.
Jack2002 (2:00 AM, January 11, 2012)
I purchased the T3i but when I actually compared it to my friends A55 I really noticed the difference. In my point of view the Sony is much better in picture quality and futures. I returned the Canon and got my Self the A55 and LOVE IT. Its an amazing camera and does everything I want.
ampictaker (1:06 PM, September 06, 2011)
This rating system is silly.  The a55 outshines the T3i in almost every aspect.  I assume it gets -25 points off the top just because the name is "Sony."
Avatar for 440rt 440rt (2:55 PM, September 05, 2011)
I bought the Sony a55 and it went back to the store in 5 days. I'm not a professional but I know what looks good. The canon t3i offers remote capture with a laptop and Sony does not. The images seem to be better on the t3i too. Sony did have its advantage with using my Minolta lenses that I have. But for me I need the ability to work the camera with my laptop in remote capture. This is Just my opinion. I think the viewer on the Sony is awesome (better than the picture). Where the viewer is great on the canon but the picture is awesome. One more thing. The way the screen open and tilts is also better on the canon and does not interfere with the tripod. But the Sony does. Again for me I need the tripod for my shots. The Sony is lighter. to carry. Hope this helps someone with their purchase.
Confused (11:17 PM, August 19, 2011)
I'm told that professionals only use Nikon and Cannon. I have a Sony point and shoot and I love it. I'm obviously no professional, but why don't these photographers use the Sony cameras? This comparison seems so lopsided to the Sony, but every store I go to they don't even mention this camera, they bypass it and go to the Cannon or Nikon cameras even though they are right beside eachother?! HELP!!!
Ununquadium (1:47 PM, July 21, 2011)
How does popularity determine the better camera? Clearly the a55 is superior, regardless of the verdict given here.
BravoCharlie (10:35 AM, July 16, 2011)
Hey, i had just bought A55: pictures were just stunning; 10 frames/ sec. is awesome, just shots well with my son's soccer game, not missing any good moments; handheld twilight is just great, i love it. Whatever the cons are, pretty neglible for personal use, or for an entry level camera.
Avatar for Ian Garlic Ian Garlic (10:29 AM, June 29, 2011)
i have the a55 and it overheats after 10 minutes of video shooting even with image stabilization and gps off. then you cant shoot video for more then 2 min
Toshio (11:47 AM, June 20, 2011)
There is no questions for this competition. I will choose SONY Alfa 55. But I am just waiting an official sales statement of Sony Alfa 77 in order to get '55' with a low price.
Cuyo (8:28 PM, May 28, 2011)
I'm buying one of those and I think that will be the Sony...
hand (6:31 PM, May 24, 2011)
are you sure, i would rather have continuous AF (especially as good as the sony's) in movies than 24p. 
Avatar for Snapsort Snapsort (1:18 PM, April 25, 2011)
The Sony is a great camera, but the Canon has more lens options and a better video mode.
Avatar for nkalu nkalu (7:35 PM, April 23, 2011)
Which one should I buy? They both look cool.