Canon EOS 5D Mark III vs Sony SLT A99

Canon EOS 5D Mark III


Sony SLT A99



Reasons to buy the Canon EOS 5D Mark III

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

Reasons to buy the Sony SLT A99

Color depth
Great color depth
25 bits
Dynamic range
Wide dynamic range
14 EV
Screen resolution
High resolution screen
1,229k dots
Image stabilization
Image stabilization
  1. Sensor shift


Explore our gallery of 49 sample photos taken by the Canon EOS 5D Mark III.
Explore our gallery of 50 sample photos taken by the Sony SLT A99.


Canon EOS 5D Mark III Competitors

Canon EOS 7D

Canon EOS 7D


$861 body only

$1,279 with 28-135mm lens

Lens availability Significantly more lenses available
Continuous shooting Shoots faster
Low light performance Significantly more noise at high ISO
Nikon D750

Nikon D750


$1,585 - $1,997 body only

$2,109 - $2,297 with 24-120mm lens

Dynamic range More dynamic range
Overall image quality Significantly better image quality
Cross type focus points Many fewer cross-type focus points
Canon EOS 6D

Canon EOS 6D


$1,186 - $1,399 body only

$1,679 - $1,799 with 24-105mm lens

Dynamic range More dynamic range
Screen size Much smaller screen

Sony SLT A99 Competitors

Sony SLT A77 II

Sony SLT A77 II


$998 body only

$1,598 with 16-50mm lens

Continuous shooting Shoots significantly faster
Focus points Significantly more focus points
Low light performance More noise at high ISO
Sony A7

Sony A7

Mirrorless interchangeable-lens

$998 - $3,198 body only

$1,298 with 28-70mm lens

Low light performance Lower noise at high ISO
Focus points Many more focus points
Autofocus Slower autofocus
Nikon D750

Nikon D750


$1,585 - $1,997 body only

$2,109 - $2,297 with 24-120mm lens

Low light performance Significantly lower noise at high ISO
Viewfinder Has an optical viewfinder
Image stabilization No image stabilization


Canon EOS 5D Mark III

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Sony SLT A99

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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!