Updated (May, 2012): Compare the Canon Rebel T4i vs Sony SLT-A65

Sony SLT-A55 vs Canon Rebel T3i

Winner
Sony SLT-A55

75

Canon Rebel T3i

58

Runner-up

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
0.72x
Image stabilization
Image stabilization
Sensor shift
 

Reasons to buy the Canon Rebel T3i

Screen flips out
Flip-out screen
Great for movies

galleries

Explore 23 sample photos taken by the Canon Rebel T3i

differences

Advantages of the Canon T3i

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Supports 24p
Supports 24p
Yes vs No
Help
Get that real film feel
Viewfinder
Has an optical viewfinder
Pentamirror vs Digital
Help
Optical viewfinders save battery life and are more detailed
Lens availability
Significantly more lenses available
197 lenses vs 123 lenses
Help
More than 60% more lenses available
Screen resolution
Higher resolution screen
1,040k dots vs 921k dots
Help
More than 10% higher resolution screen
True resolution
Higher true resolution
17.9 MP vs 16 MP
Help
Capture more than 10% more detail in your photos
Battery life
Longer battery life
440 shots vs 330 shots
Help
More than 30% more shots per battery charge
Lowest price
Significantly cheaper
$499.00 vs $899.99
Help
The best price we've seen is $401 cheaper (more than 40% less)
Thickness
Significantly thinner
3.1" vs 3.3"
Help
Around 10% thinner
Canon Rebel T3i Learn more about
the Canon T3i

Advantages of the Sony SLT-A55

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Autofocus
Video autofocus
Phase detection vs None
Help
Automatically focuses shooting video
Viewfinder size
Much larger viewfinder
0.72x vs 0.53x
Help
Around 90% larger viewfinder
Continuous shooting
Shoots much faster
10 fps vs 3.7 fps
Help
More than 2.5x faster continuous shooting
3D
Takes 3D photos
Yes vs No
Help
Combines multiple photos into a 3D image
Dynamic range
More dynamic range
12.4 EV vs 11.5 EV
Help
0.9 f-stops more dynamic range
Overall image quality
Better image quality
73.0 vs 65.0
Help
More than 10% better image quality
Image stabilization
Image stabilization
Sensor shift vs None
Help
Helps eliminate blur caused by small camera movements
HDR
Has in-camera HDR
Yes vs No
Help
Combines multiple exposures to capture high dynamic range
Panorama
Can create panoramas in-camera
Yes vs No
Help
Stitches together multiple photos for a wide perspective
Color depth
Better color depth
23 bits vs 22.1 bits
Help
Distinguishes 0.9 more bits of color
Startup delay
Significantly less startup delay
900 ms vs 1500 ms
Help
40% less delay when turning on
GPS
Has a GPS
Yes vs No
Help
Automatically geotags your photos when traveling
Shutter lag
Less shutter lag
220 ms vs 283 ms
Help
More than 20% less delay when taking photos
Light sensitivity (boost)
Better boost ISO
25,600 ISO vs 12,800 ISO
Help
The SLT-A55's boost ISO is 1 f-stop better
Focus points
More focus points
15 vs 9
Help
Set focus accurately within the frame
Size
Smaller
124x92x85 mm vs 133x99x79 mm
Help
Around 10% smaller
Cross type focus points
Slightly more cross-type focus points
3 vs 1
Help
Grab focus in difficult situations
Light sensitivity
Better maximum light sensitivity
12,800 ISO vs 6,400 ISO
Help
The SLT-A55's maximum light sensitivity is 1 f-stop better
Weight
Lighter
500 g vs 570 g
Help
More than 10% lighter
Sony SLT-A55 Learn more about
the Sony SLT-A55
vs

recommendations

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

Snapsort Recommends
Canon Rebel T3i Canon Rebel T3i 58
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    Style
      Color
        You save
        vs
        75 Sony SLT-A55 Sony SLT-A55
        Retailer
          Style
            Color
              You save

              similarities

              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
              T3i:3.1"
              SLT-A55:3.3"
              Cross type focus points Few cross-type focus points Help
              T3i:1
              SLT-A55:3
              Battery life Few shots per battery charge Help
              T3i:440 shots
              SLT-A55:330 shots
              True resolution Capture low resolution images Help
              T3i:17.9 MP
              SLT-A55:16 MP
              Weather sealed Neither is weather sealed Help
              Need to shelter it from weather
              Touch screen No touchscreens Help
              More buttons
              Light sensitivity Poor maximum light sensitivity Help
              T3i:6,400 ISO
              SLT-A55:12,800 ISO
              Movie format Both shoot high resolution HD movies Help
              1080p @ 30fps
              Low light performance Above average noise at high ISO Help
              T3i:793 ISO
              SLT-A55:816 ISO

              dxomark

              DXOMark

              competitors

              Shared Competitors

              Advantages

              Disadvantages

              Canon Rebel T5i

              Canon Rebel T5i

              Entry-level DSLR

              $599 - $699 body only

              $620 - $700 with 18-55mm lens

              Touch screen Has a touch screen
              Cross type focus points Has slightly more cross-type focus points
              Weight Is slightly heavier
              Size Is slightly larger
              Nikon D3200

              Nikon D3200

              Entry-level DSLR

              $302 - $557 body only

              $379 - $447 with 18-55mm lens

              Low light performance Is significantly less noisy at high ISO
              Overall image quality Has slightly better image quality
              Shutter lag Has slightly more shutter lag
              Screen flips out Doesn't have a screen which flips out
              Canon EOS 60D

              Canon EOS 60D

              Pro DSLR

              $699 - $719 body only

              $899 - $1,182 with 18-135mm lens

              Startup delay Has slightly less startup delay
              Viewfinder Has higher quality type of viewfinder
              Lowest price Is slightly more expensive
              Weight Is much heavier
              Nikon D5200

              Nikon D5200

              Entry-level DSLR

              $547 body only

              $499 - $647 with 18-55mm lens

              Low light performance Is significantly less noisy at high ISO
              Overall image quality Has significantly better image quality
              Shutter lag Has significantly more shutter lag
              Nikon D5100

              Nikon D5100

              Entry-level DSLR

              $334 body only

              $847 with 18-55mm lens

              Low light performance Is significantly less noisy at high ISO
              Overall image quality Has slightly better image quality
              Shutter lag Has slightly more shutter lag
              Canon Rebel SL1

              Canon Rebel SL1

              Entry-level DSLR

              $399 - $549 body only

              $499 - $500 with 18-55mm lens

              Touch screen Has a touch screen
              Startup delay Has slightly less startup delay
              Shutter lag Has slightly more shutter lag
              Screen flips out Doesn't have a screen which flips out
              Canon EOS Rebel T2i

              Canon Rebel T2i

              Entry-level DSLR

              $700 with 18-55mm lens

              Startup delay Has slightly less startup delay
              Size Is significantly smaller
              Lowest price Is slightly more expensive
              Shutter lag Has slightly more shutter lag

              Canon Rebel T3i Competitors

              Advantages

              Disadvantages

              Canon EOS Rebel T5

              Canon EOS Rebel T5

              Entry-level DSLR

              $399 - $400 with 18-55mm lens

              Autofocus Video autofocus
              Battery life Slightly longer battery life
              Screen resolution Much lower resolution screen
              External mic jack Lacks an external mic jack

              Sony SLT-A55 Competitors

              Advantages

              Disadvantages

              Sony SLT A57

              Sony SLT A57

              Entry-level DSLR

              $551 with 18-55mm lens

              Movie format Lower frame rate movies
              Supports 24p Supports 24p
              GPS No built-in GPS
              Low light performance Slightly more noise at high ISO
              Sony SLT-A37

              Sony SLT-A37

              Entry-level DSLR

              $500 with 18-55mm lens

              Supports 24p Supports 24p
              Shutter lag Significantly less shutter lag
              Screen resolution Much lower resolution screen
              Screen size Much smaller screen
              Sony SLT-A77

              Sony SLT A77

              Pro DSLR

              $1,238 with 16-50mm lens

              Movie format Lower frame rate movies
              Supports 24p Supports 24p
              Startup delay Much more startup delay
              Size Much larger
              Sony SLT-A65

              Sony SLT A65

              Entry-level DSLR

              $593 with 18-55mm lens

              Movie format Lower frame rate movies
              Supports 24p Supports 24p
              Startup delay Much more startup delay
              Low light performance More noise at high ISO
              Sony SLT-A33

              Sony SLT-A33

              Entry-level DSLR

              Dynamic range More dynamic range
              Startup delay Slightly less startup delay
              Low light performance More noise at high ISO
              Continuous shooting Shoots much slower

              appearance

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

              discussion

              Canon Rebel T3i
              Rebel T3i
              Canon

              Report a correction
              Sony SLT-A55
              SLT-A55
              Sony

              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.