Canon EOS 5D Mark III vs Sony SLT-A99

Winner
Canon EOS 5D Mark III

87

Sony SLT-A99

81

Runner-up

Reasons to buy the Canon EOS 5D Mark III

Large screen
Screen size
3.2"
Barely any delay taking photos
Shutter lag
120 ms shutter lag
Many focus points
Focus points
61
Many cross-type focus points
Cross type focus points
41
 

Reasons to buy the Sony SLT-A99

Dynamic range
Wide dynamic range
14 EV
Screen resolution
High resolution screen
1,229k dots
Image stabilization
Image stabilization
  1. Sensor shift
Screen flips out
Flip-out screen
Great for movies

galleries

Explore our gallery of 50 sample photos taken by the Canon EOS 5D Mark III.
Explore our gallery of 50 sample photos taken by the Sony SLT-A99.

differences

Advantages of the Canon 5D Mark III

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Low light performance
Lower noise at high ISO
2,293 ISO vs 1,555 ISO
Help
The 5D Mark III has a slight edge (0.6 f-stops) in low-noise, high-ISO performance
Viewfinder
Has an optical viewfinder
Pentaprism vs Digital
Help
Optical viewfinders save battery life and are more detailed
Screen size
Significantly larger screen
3.2" vs 3"
Help
Around 10% larger screen
Cross type focus points
Many more cross-type focus points
41 vs 11
Help
Grab focus in difficult situations
Focus points
Significantly more focus points
61 vs 19
Help
Set focus accurately within the frame
Lens availability
More lenses available
165 lenses vs 126 lenses
Help
More than 30% more lenses available
Battery life
Longer battery life
950 shots vs 500 shots
Help
90% more shots per battery charge
Startup delay
Less startup delay
500 ms vs 700 ms
Help
Around 30% less delay when turning on
Shutter lag
Slightly less shutter lag
120 ms vs 127 ms
Help
Around 10% less delay when taking photos
Thickness
Thinner
3" vs 3.1"
Help
Almost the same
Canon EOS 5D Mark III Learn more about
the Canon 5D Mark III

Advantages of the Sony SLT-A99

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Dynamic range
More dynamic range
14 EV vs 11.7 EV
Help
1.2 f-stops more dynamic range
Image stabilization
Image stabilization
  1. Sensor shift
vs None
Help
Helps eliminate blur caused by small camera movements
Overall image quality
Better image quality
89.0 vs 81.0
Help
Around 10% better image quality
Panorama
Can create panoramas in-camera
Yes vs No
Help
Stitches together multiple photos for a wide perspective
Screen flips out
Has a flip-out screen
Yes vs No
Help
Flip-out screens can be helpful when composing tricky shots or taking movies
Screen resolution
Higher resolution screen
1,229k dots vs 1,040k dots
Help
Around 20% higher resolution screen
GPS
Has a GPS
Yes vs No
Help
Automatically geotags your photos when traveling
Color depth
Better color depth
25 bits vs 24 bits
Help
Distinguishes 1 more bits of color
True resolution
Slightly higher true resolution
24 MP vs 22.3 MP
Help
Capture around 10% more detail in your photos
Weight
Lighter
812 g vs 950 g
Help
More than 10% lighter
Size
Slightly smaller
147×111×78 mm vs 152×116×76 mm
Help
Around 10% smaller
Lowest price
Slightly cheaper
$1,998.00 vs $2,239.99
Help
The best price we've seen is $242 cheaper (more than 10% less)
Sony SLT-A99 Learn more about
the Sony SLT-A99
vs

recommendations

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

Snapsort Recommends
Canon EOS 5D Mark III Canon EOS 5D Mark III 87
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      Color
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        vs
        81 Sony SLT-A99 Sony SLT-A99
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            Color
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              similarities

              Compared to recent DSLRs

              Common Strengths
              Viewfinder size Above average viewfinder size Help
              0.71x
              Shutter lag Minimal shutter lag Help
              5D Mark III120 ms
              SLT-A99127 ms
              Weather sealed Weather sealed Help
              Shoot in extreme weather
              Storage slots Multiple storage slots Help
              2
              Viewfinder coverage Above average viewfinder coverage Help
              100%
              Fastest shutter speed Fast max shutter speeds Help
              1/8000 of a second
              Common Weaknesses
              Built-in flash No built-in flash Help
              Professional
              Weight Heavy Help
              5D Mark III950 g
              SLT-A99812 g
              Lowest price Very expensive Help
              5D Mark III$2,239.99
              SLT-A99$1,998.00
              Built-in focus motor No focus motor Help
              Won't autofocus with all lenses
              Touch screen No touchscreens Help
              More buttons

              Compared to recent pro DSLRs

              Common Strengths
              Light sensitivity Very good maximum light sensitivity Help
              25,600 ISO
              Common Weaknesses
              Continuous shooting Slow continuous shooting Help
              6 fps

              dxomark

              DXOMark

              competitors

              Shared Competitors

              Advantages

              Disadvantages

              Canon EOS 6D

              Canon EOS 6D

              Pro DSLR

              $1,269 - $1,399 body only

              $1,799 with 24-105mm lens

              Lowest price Is slightly less expensive
              Thickness Is thinner
              Fastest shutter speed Has a slower max shutter speed
              Storage slots Has fewer storage slots
              Nikon D750

              Nikon D750

              Pro DSLR

              $1,997 body only

              $2,697 with 24-120mm lens

              Low light performance Is slightly less noisy at high ISO
              Battery life Has a slightly longer battery life
              Fastest shutter speed Has a slower max shutter speed
              Light sensitivity (boost) Slightly lower boost light sensitivity
              Nikon D810

              Nikon D810

              Pro DSLR

              $2,997 body only

              $3,697 with 24-120mm lens

              Low light performance Is slightly less noisy at high ISO
              Overall image quality Has slightly better image quality
              Lowest price Is slightly more expensive
              Thickness Is thicker
              Canon EOS 5D Mark II

              Canon EOS 5D Mark II

              Pro DSLR

              $2,038 body only

              Storage slots Has fewer storage slots
              Light sensitivity (boost) Slightly lower boost light sensitivity
              Canon EOS 7D Mark II

              Canon EOS 7D Mark II

              Pro DSLR

              $1,399 - $1,499 body only

              $1,679 - $1,849 with 18-135mm lens

              Continuous shooting Shoots faster continuously
              Lens availability Slightly more lenses available
              Light sensitivity (boost) Slightly lower boost light sensitivity
              Autofocus Users slower contrast detection autofocus
              Nikon D800

              Nikon D800

              Pro DSLR

              $1,749 body only

              Low light performance Is slightly less noisy at high ISO
              Overall image quality Has slightly better image quality
              Thickness Is thicker
              Weight Is slightly heavier
              Canon EOS 70D

              Canon EOS 70D

              Pro DSLR

              $849 - $999 body only

              $919 - $1,099 with 18-55mm lens

              Touch screen Has a touch screen
              Shutter lag Has slightly less shutter lag
              Thickness Is thicker
              Storage slots Has fewer storage slots

              Canon EOS 5D Mark III Competitors

              Advantages

              Disadvantages

              No significant competitors found that are specific to the Canon EOS 5D Mark III.

              Sony SLT-A99 Competitors

              Advantages

              Disadvantages

              Sony SLT A77 II

              Sony SLT A77 II

              Pro DSLR

              $880 - $998 body only

              $1,598 with 16-50mm lens

              Continuous shooting Shoots much faster
              Focus points Many more focus points
              Low light performance More noise at high ISO
              Overall image quality Worse image quality
              Sony SLT-A77

              Sony SLT A77

              Pro DSLR

              $1,099 body only

              $1,499 with 18-135mm lens

              3D Takes 3D photos
              Continuous shooting Shoots much faster
              Startup delay Much more startup delay
              Low light performance More noise at high ISO

              appearance

              Canon EOS 5D Mark III Sony SLT-A99
              Canon EOS 5D Mark III Sony SLT-A99
              Canon EOS 5D Mark III Sony SLT-A99

              discussion

              Canon EOS 5D Mark III
              EOS 5D Mark III
              Canon

              Report a correction
              Sony SLT-A99
              SLT-A99
              Sony

              Report a correction

              Showing 9 comments

              Avatar for Stathis Stathis (4:21 AM, August 23, 2014)
              The same wronfg in every test of sony cameras...All the sony cameras have built in focus motor.
               
              Josh (1:26 AM, August 22, 2014)
              To me, it comes down to image quality. How the Canon wins is perplexing here. More lenses and a pentaprism are deal breakers? Your comparison criteria is low level and simplistic. Legitimate reviews like the ones done at Dpreview score the A99 84 and Canon 5Dmlll 82. The A99 beats the 5D in every category except "build quality". Image quality, video mode etc. are more important then pentaprism vs. digital. I actually prefer the Sony viewfinder.
               
              Phodeo (2:52 PM, April 25, 2014)
              It seems snap sort gives the edge on any camera based on high ISO performance. I'm not sure how else the a99 can have many more advantages, including better image quality and still lose on here.
               
              Ronny... (6:09 PM, January 02, 2014)
              I currently hold A77v and A58K cams this r better, cheaper then nikon, canons cams.... and as what i feel A99 is more more better then mark iii... if u r planning to buy high end cam then go for A99... the pic qlty just amazing on this cam then mark iii... enjoy...
               
              Avatar for Ayaz Ayaz (9:31 AM, June 10, 2013)
              The best part of SONY ALPHA series has not been mentioned which is fast auto-focus in live view and movie recording...apart from that it also has a unique peaking level option which assists in manual focusing as well. A99 has multi-frame noise reduction which is not available in Mark iii
               
              Avatar for Benjamin Rodriguez Benjamin Rodriguez (5:56 AM, March 11, 2013)
              This comparisons are ALL inaccurate and unreliable. Anyone seriously interested should go to a site where humans do the reviews, or for simple specs comparisons, look up the specs themselves.
               
              Avatar for Benjamin Rodriguez Benjamin Rodriguez (5:55 AM, March 11, 2013)
              There is none
               
              jorge (0:53 AM, November 29, 2012)
              Where the hell is the built in flash on a a99
               
              Avatar for AStarbucks AStarbucks (7:16 AM, November 22, 2012)
              Why is it that the world beating 0.05s (or 50ms) shutter lag of the A99 is not listed? That's less than half that of the 5D Mk III and even beats the 1DX (although you can reduce it to 36ms thru its custom functions).

              The A99 uses an electronic front curtain to achieve it, similar to the top of the line Canon 1DX.

              The even greater irony is that in Snapsort's comparison between the 5D Mk III & the D800 (204 ms), the former was rated as significantly better even though its 120ms!