Updated (April 2014): Compare the Nikon D5100 vs Sony SLT A77 II

Sony SLT A77 vs Nikon D5100

Winner
Sony SLT-A77

80

Nikon D5100

65

Runner-up

Reasons to buy the Sony SLT A77

Large viewfinder
Viewfinder size
0.72x
Image stabilization
Image stabilization
  1. Sensor shift
Weather sealed
Weather sealed
Shoot in extreme weather
Rapid fire
Continuous shooting
12 fps
 

Reasons to buy the Nikon D5100

Startup delay
Almost no delay when powering up
500 ms startup delay
Screen flips out
Flip-out screen
Great for movies
HDR
In-camera HDR
Combines multiple exposures
Movie continuous focus
Movie continuous focus
Makes it easy to get in-focus movies

Items often bought with the Sony SLT A77 or Nikon D5100

galleries

Explore our gallery of 50 sample photos taken by the Nikon D5100.
Explore our gallery of 50 sample photos taken by the Sony SLT-A77.

differences

Advantages of the Nikon D5100

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Startup delay
Much less startup delay
500 ms vs 3100 ms
Help
6.2x less delay when turning on
Viewfinder
Has an optical viewfinder
Pentamirror vs Digital
Help
Optical viewfinders save battery life and are more detailed
Lens availability
Much more lenses available
230 lenses vs 126 lenses
Help
More than 80% more lenses available
Low light performance
Lower noise at high ISO
1,183 ISO vs 801 ISO
Help
The D5100 has a slight edge (0.6 f-stops) in low-noise, high-ISO performance
Overall image quality
Slightly better image quality
80.0 vs 78.0
Help
Almost the same
Size
Smaller
127×97×79 mm vs 143×104×81 mm
Help
Around 20% smaller
Battery life
Slightly longer battery life
660 shots vs 530 shots
Help
More than 20% more shots per battery charge
Weight
Lighter
560 g vs 732 g
Help
More than 20% lighter
Lowest price
Cheaper
$368.00 vs $1,098.89
Help
The best price we've seen is $731 cheaper (3x less)
Thickness
Thinner
3.1" vs 3.2"
Help
Almost the same
Nikon D5100 Learn more about
the Nikon D5100

Advantages of the Sony SLT A77

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3D
Takes 3D photos
Yes vs No
Help
Combines multiple photos into a 3D image
Viewfinder size
Much larger viewfinder
0.72x vs 0.51x
Help
Around 2x larger viewfinder
Continuous shooting
Shoots much faster
12 fps vs 4 fps
Help
3x faster continuous shooting
Image stabilization
Image stabilization
  1. Sensor shift
vs None
Help
Helps eliminate blur caused by small camera movements
Panorama
Can create panoramas in-camera
Yes vs No
Help
Stitches together multiple photos for a wide perspective
Shutter lag
Much less shutter lag
124 ms vs 273 ms
Help
2.2x less delay when taking photos
Autofocus
Faster video autofocus
Phase detection vs Contrast detection
Help
Shoot videos without worrying about focus
Weather sealed
Weather sealed
Yes vs No
Help
Sealed to shoot in the rain
GPS
Has a GPS
Yes vs No
Help
Automatically geotags your photos when traveling
Viewfinder coverage
Much better viewfinder coverage
100% vs 95%
Help
Around 10% better viewfinder coverage
True resolution
Higher true resolution
24 MP vs 16.1 MP
Help
Capture around 50% more detail in your photos
Light sensitivity
Better maximum light sensitivity
16,000 ISO vs 6,400 ISO
Help
The SLT A77's maximum light sensitivity is 2.6 f-stops better
Color depth
Better color depth
24 bits vs 23.5 bits
Help
Almost the same
Cross type focus points
More cross-type focus points
11 vs 1
Help
Grab focus in difficult situations
Focus points
More focus points
19 vs 11
Help
Set focus accurately within the frame
Fastest shutter speed
Much faster max shutter speed
1/8000s vs 1/4000s
Help
2x faster max shutter speed
Sony SLT-A77 Learn more about
the Sony SLT A77
vs

recommendations

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

Snapsort Recommends
Nikon D5100 Nikon D5100 65
Retailer
    Style
      Color
        You save
        vs
        80 Sony SLT A77 Sony SLT-A77
        Retailer
          Style
            Color
              You save

              similarities

              Compared to recent DSLRs

              Common Strengths
              Screen flips out Flip-out screens Help
              Great for movies
              Movie continuous focus Focus continuously recording movies Help
              Makes it easy to get in-focus movies
              Common Weaknesses
              Storage slots Fewer storage slots Help
              1
              Built-in focus motor No focus motor Help
              Won't autofocus with all lenses
              Focus points Few focus points Help
              D510011
              SLT A7719
              Touch screen No touchscreens Help
              More buttons
              Screen size Very small screens Help
              3"

              dxomark

              DXOMark

              competitors

              Shared Competitors

              Advantages

              Disadvantages

              Nikon D3300

              Nikon D3300

              Entry-level DSLR

              $439 - $497 with 18-55mm lens

              Thickness Is thinner
              Weight Is slightly lighter
              Fastest shutter speed Has a slower max shutter speed
              HDR Lacks a built-in HDR feature
              Nikon D5200

              Nikon D5200

              Entry-level DSLR

              $405 - $497 body only

              $479 - $500 with 18-55mm lens

              Focus points Has slightly more focus points
              Fastest shutter speed Has a slower max shutter speed
              Shutter lag Has much more shutter lag
              Nikon D5300

              Nikon D5300

              Entry-level DSLR

              $465 - $647 body only

              $549 - $747 with 18-55mm lens

              Screen size Has a significantly larger screen
              Screen resolution Has a slightly higher resolution screen
              Fastest shutter speed Has a slower max shutter speed
              Shutter lag Has slightly more shutter lag
              Nikon D7100

              Nikon D7100

              Entry-level DSLR

              $713 - $797 body only

              $948 - $1,097 with 18-140mm lens

              Screen size Has a significantly larger screen
              Screen resolution Has a significantly higher resolution screen
              Weight Is slightly heavier
              Shutter lag Has significantly more shutter lag
              Canon Rebel T5i

              Canon Rebel T5i

              Entry-level DSLR

              $495 - $649 body only

              $581 - $649 with 18-55mm lens

              Screen resolution Has a slightly higher resolution screen
              Touch screen Has a touch screen
              Fastest shutter speed Has a slower max shutter speed
              Shutter lag Has much more shutter lag
              Nikon D7200

              Nikon D7200

              Entry-level DSLR

              $979 - $1,097 body only

              $1,397 with 18-140mm lens

              Overall image quality Has slightly better image quality
              Screen size Has a significantly larger screen
              Weight Is slightly heavier
              Movie continuous focus Doesn't focus continuously while recording movies
              Nikon D7000

              Nikon D7000

              Entry-level DSLR

              $479 body only

              $720 with 18-55mm lens

              Viewfinder Has higher quality type of viewfinder
              Battery life Has a slightly longer battery life
              Weight Is slightly heavier
              HDR Lacks a built-in HDR feature

              Nikon D5100 Competitors

              Advantages

              Disadvantages

              Nikon D3200

              Nikon D3200

              Entry-level DSLR

              $289 body only

              $349 - $447 with 18-55mm lens

              True resolution Higher true resolution
              Color depth Better color depth
              HDR Lacks in-camera HDR
              Screen flips out Screen does not flip out
              Nikon D5500

              Nikon D5500

              Entry-level DSLR

              $559 - $747 body only

              $689 - $847 with 18-55mm lens

              Screen size Significantly larger screen
              Touch screen Has a touch screen
              Lowest price Slightly more expensive
              Canon Kiss X5

              Canon Kiss X5

              Entry-level DSLR

              $1,299 body only

              Screen resolution Higher resolution screen
              Viewfinder size Slightly larger viewfinder
              Overall image quality Significantly worse image quality
              Dynamic range Less dynamic range

              Sony SLT-A77 Competitors

              Advantages

              Disadvantages

              Sony SLT A77 II

              Sony SLT A77 II

              Pro DSLR

              $885 - $948 body only

              $1,548 with 16-50mm lens

              Screen resolution Significantly higher resolution screen
              Focus points Many more focus points
              3D Doesn't take 3D photos
              GPS No built-in GPS
              Sony Alpha A6000

              Sony Alpha A6000

              Mirrorless interchangeable-lens

              $548 body only

              $698 with 16-50mm lens

              Focus points Many more focus points
              Low light performance Lower noise at high ISO
              3D Doesn't take 3D photos
              Autofocus Slower autofocus
              Sony A7

              Sony A7

              Mirrorless interchangeable-lens

              $1,098 - $1,698 body only

              $1,398 with 28-70mm lens

              Low light performance Significantly lower noise at high ISO
              Focus points Many more focus points
              3D Doesn't take 3D photos
              Autofocus Slower autofocus
              Sony SLT-A65

              Sony SLT A65

              Entry-level DSLR

              $593 with 18-55mm lens

              Startup delay Less startup delay
              Size Smaller
              Weather sealed No weather sealing
              Overall image quality Worse image quality

              appearance

              Nikon D5100 Sony SLT-A77
              Nikon D5100 Sony SLT-A77
              Nikon D5100 Sony SLT-A77

              discussion

              Nikon D5100
              D5100
              Nikon

              Report a correction
              Sony SLT-A77
              SLT A77
              Sony

              Report a correction

              Showing 4 comments

              Meshoolord (7:05 AM, October 01, 2011)
              Hi, would you help, which is the Best DSLR that capture movies???
              Ist Nikon or Sony ALT 77????
              Please advise
               
              Avatar for Snapsort Snapsort (0:27 AM, October 01, 2011)
              Hi Ioan, the color depths quoted here are test results conducted by DXOMark
               
              Ioan Florea (0:10 AM, October 01, 2011)
              Hey. I know that Sony A-77, A-65, and NEX-7 have the same sensor. In this case, down't they have the same color depth (24 bit like A-77)? I'm asking because I haven't seen this specified on A-65 and NEX-7, presentation page.
               
              Tony Barbeta_1 (9:49 PM, September 25, 2011)
              A77, for me is clearly the better camera, bringing breakthriugh technology.