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 color depth
Color depth
23 bits
Wide dynamic range
Dynamic range
12.4 EV
Large viewfinder
Viewfinder size
Image stabilization
Image stabilization
  1. Sensor shift

Reasons to buy the Canon Rebel T3i

Supports 24p
24p movies
For that film look
Screen flips out
Flip-out screen
Great for movies


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

$498 with 18-55mm lens

Supports 24p Supports 24p
Battery life Significantly longer battery life
3D Doesn't take 3D photos
Sony SLT A57

Sony SLT A57

Entry-level DSLR

$548 with 18-55mm lens

Supports 24p Supports 24p
Movie format Lower frame rate movies
GPS No built-in GPS
Sony SLT-A65

Sony SLT A65

Entry-level DSLR

$866 with 18-55mm lens

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

Canon Rebel T3i Competitors

Canon Rebel T5i

Canon Rebel T5i

Entry-level DSLR

$482 - $649 body only

$579 - $649 with 18-55mm lens

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

Canon EOS Rebel T5

Entry-level DSLR

$399 body only

$360 - $399 with 18-55mm lens

Autofocus Video autofocus
Battery life Slightly longer battery life
Screen resolution Much lower resolution screen
Nikon D3200

Nikon D3200

Entry-level DSLR

$289 body only

$379 - $447 with 18-55mm lens

Overall image quality Significantly better image quality
Low light performance Significantly lower noise at high ISO
Screen flips out Screen does not flip out


Advantages of the Canon T3i

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Supports 24p
Supports 24p
Yes vs No
Get that real film feel
Has an optical viewfinder
Pentamirror vs Digital
Optical viewfinders save battery life and are more detailed
Lens availability
Significantly more lenses available
220 lenses vs 126 lenses
More than 70% more lenses available
Screen resolution
Higher resolution screen
1,040k dots vs 921k dots
More than 10% higher resolution screen
True resolution
Higher true resolution
17.9 MP vs 16 MP
Capture more than 10% more detail in your photos
Battery life
Longer battery life
440 shots vs 330 shots
More than 30% more shots per battery charge
Significantly thinner
3.1" vs 3.3"
Around 10% thinner
Lowest price
$459.00 vs $532.96
The best price we've seen is $74 cheaper (more than 10% less)
Canon Rebel T3i Learn more about
the Canon T3i

Advantages of the Sony SLT A55

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Video autofocus
Phase detection vs None
Automatically focuses shooting video
Viewfinder size
Much larger viewfinder
0.72x vs 0.53x
Around 90% larger viewfinder
Takes 3D photos
Yes vs No
Combines multiple photos into a 3D image
Continuous shooting
Shoots much faster
10 fps vs 3.7 fps
More than 2.5x faster continuous shooting
Dynamic range
More dynamic range
12.4 EV vs 11.5 EV
1.2 f-stops more dynamic range
Overall image quality
Better image quality
73.0 vs 65.0
More than 10% better image quality
Image stabilization
Image stabilization
  1. Sensor shift
vs None
Helps eliminate blur caused by small camera movements
Has in-camera HDR
Yes vs No
Combines multiple exposures to capture high dynamic range
Can create panoramas in-camera
Yes vs No
Stitches together multiple photos for a wide perspective
Color depth
Better color depth
23 bits vs 22.1 bits
Distinguishes 0.9 more bits of color
Startup delay
Significantly less startup delay
900 ms vs 1500 ms
40% less delay when turning on
Has a GPS
Yes vs No
Automatically geotags your photos when traveling
Shutter lag
Less shutter lag
220 ms vs 283 ms
More than 20% less delay when taking photos
Focus points
More focus points
15 vs 9
Set focus accurately within the frame
Light sensitivity
Better maximum light sensitivity
12,800 ISO vs 6,400 ISO
The SLT A55's maximum light sensitivity is 2 f-stops better
124×92×85 mm vs 133×100×80 mm
Around 10% smaller
Cross type focus points
Slightly more cross-type focus points
3 vs 1
Grab focus in difficult situations
Light sensitivity (boost)
Better boost ISO
25,600 ISO vs 12,800 ISO
The SLT A55's boost ISO is 2 f-stops better
500 g vs 570 g
More than 10% lighter
Sony SLT-A55 Learn more about
the Sony SLT A55


Which camera do we recommend? Relative to the best recent entry-level DSLRs, and ignoring price

Snapsort Recommends
Canon Rebel T3i Canon Rebel T3i 56
        You save
        74 Sony SLT A55 Sony SLT-A55
              You save


              Compared to recent entry-level DSLRs

              Common Strengths
              Screen flips out Flip-out screens Help
              Great for movies
              External mic jack Have external mic jacks Help
              Record higher quality audio with a microphone
              Common Weaknesses
              Fastest shutter speed Slow max shutter speed Help
              1/4000 of a second
              Thickness Quite thick Help
              SLT A553.3"
              Built-in focus motor No focus motor Help
              Won't autofocus with all lenses
              True resolution Capture low resolution images Help
              T3i17.9 MP
              SLT A5516 MP
              Cross type focus points Few cross-type focus points Help
              SLT A553
              Battery life Few shots per battery charge Help
              T3i440 shots
              SLT A55330 shots
              Light sensitivity Poor maximum light sensitivity Help
              T3i6,400 ISO
              SLT A5512,800 ISO
              Weather sealed Neither is weather sealed Help
              Need to shelter it from weather
              Touch screen No touchscreens Help
              More buttons
              Movie format Both shoot high resolution HD movies Help
              1080p @ 30fps
              Low light performance Above average noise at high ISO Help
              T3i793 ISO
              SLT A55816 ISO




              Sony SLT-A55 Canon Rebel T3i
              Sony SLT-A55 Canon Rebel T3i
              Sony SLT-A55 Canon Rebel T3i


              Sony SLT-A55
              SLT A55

              Report a correction
              Canon Rebel T3i
              Rebel T3i

              Report a correction

              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.