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Sony A77 vs Sony A99

Portability
59
Imaging
64
Features
83
Overall
71
Sony SLT-A77 front
 
Sony SLT-A99 front
Portability
57
Imaging
70
Features
88
Overall
77

Sony A77 vs Sony A99 Key Specs

Sony A77
(Full Review)
  • 24MP - APS-C Sensor
  • 3" Fully Articulated Screen
  • ISO 50 - 16000 (Increase to 25600)
  • Sensor based Image Stabilization
  • 1/8000s Max Shutter
  • 1920 x 1080 video
  • Sony/Minolta Alpha Mount
  • 732g - 143 x 104 x 81mm
  • Introduced October 2011
  • Older Model is Sony A700
  • New Model is Sony A77 II
Sony A99
(Full Review)
  • 24MP - Full frame Sensor
  • 3" Fully Articulated Screen
  • ISO 100 - 25600
  • Sensor based Image Stabilization
  • 1/8000s Maximum Shutter
  • 1920 x 1080 video
  • Sony/Minolta Alpha Mount
  • 812g - 147 x 111 x 78mm
  • Announced December 2012
  • Older Model is Sony A900
  • Replacement is Sony A99 II
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Sony A77 vs Sony A99 Overview

Its time to look a bit more closely at the Sony A77 versus Sony A99, both Advanced DSLR digital cameras and both are manufactured by Sony. The resolution of the A77 (24MP) and the A99 (24MP) is pretty similar but the A77 (APS-C) and A99 (Full frame) have totally different sensor size.

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The A77 was revealed 13 months before the A99 which makes them a generation apart from each other. Both of these cameras feature the same body design (Mid-size SLR).

Before delving straight to a thorough comparison, here is a concise summary of how the A77 matches up versus the A99 when considering portability, imaging, features and an overall rating.

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Reasons to pick Sony A77 over the Sony A99

 A77 A99 

Reasons to pick Sony A99 over the Sony A77

 A99 A77 
AnnouncedDecember 2012October 2011Fresher by 13 months
Screen resolution1229k921kCrisper screen (+308k dot)

Common features in the Sony A77 and Sony A99

 A77 A99 
Manually focus Very accurate focus
Screen typeFully ArticulatedFully ArticulatedFully Articulated screen
Screen size3"3"Same screen size
Selfie screen Both good for selfies
Touch friendly screen No Touch friendly screen

Sony A77 vs Sony A99 Physical Comparison

For anyone who is looking to carry your camera, you will want to factor in its weight and volume. The Sony A77 enjoys physical dimensions of 143mm x 104mm x 81mm (5.6" x 4.1" x 3.2") with a weight of 732 grams (1.61 lbs) while the Sony A99 has sizing of 147mm x 111mm x 78mm (5.8" x 4.4" x 3.1") with a weight of 812 grams (1.79 lbs).

Check out the Sony A77 versus Sony A99 in our completely new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Remember, the weight of an ILC will vary based on the lens you are employing at that moment. Below is a front view physical size comparison of the A77 compared to the A99.

Sony A77 vs Sony A99 size comparison

Looking at size and weight, the portability rating of the A77 and A99 is 59 and 57 respectively.

Sony A77 vs Sony A99 top view buttons comparison

Sony A77 vs Sony A99 Sensor Comparison

In many cases, it can be hard to see the difference between sensor sizing just by going over specs. The graphic underneath might provide you a better sense of the sensor sizes in the A77 and A99.

All in all, both of those cameras feature the identical resolution albeit not the same sensor sizing. The A77 contains the tinier sensor which will make getting bokeh trickier. The older A77 is going to be disadvantaged in sensor innovation.

Sony A77 vs Sony A99 sensor size comparison

Sony A77 vs Sony A99 Screen and ViewFinder

Sony A77 vs Sony A99 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Sony A77 as a Portrait photography camera
Sony A99 as a Portrait photography camera
78
you can focus manually
sensor resolution is decent (24 megapixels)
good sensor size (APS-C)
supports face detect focusing
delivers RAW formats
82
you can focus manually
decent MP (24MP)
sensor size is great (Full frame)
supports face detection autofocus
exports RAW formats
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Street Comparison

Sony A77 Street photography features
Sony A99 Street photography features
75
screen can move to multiple angles
image stabilization (Sensor based)
good sensor size (APS-C)
delivers RAW formats
environment proof
75
screen can move to multiple angles
has image stabilization (Sensor based)
sensor size is great (Full frame)
exports RAW formats
weather sealing
above average ISO range (25,600)
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Sports Comparison

Sony A77 Sports photography information
Sony A99 Sports photography information
74
high shutter speed (1/8,000s)
image stabilization (Sensor based)
sensor resolution is decent (24MP)
good sensor size (APS-C)
environment proof
comes with phase detect AF
not so great battery life (470 shots)
78
max shutter speed is good (1/8,000s)
has image stabilization (Sensor based)
decent MP (24MP)
sensor size is great (Full frame)
supports tracking autofocus
weather sealing
supports phase detect autofocus
bad battery power (500 shots)
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Travel Comparison

Travel photography with Sony A77
Travel photography with Sony A99
63
environment proof
sensor resolution is decent (24 megapixels)
built-in flash
selfie friendly screen
missing Timelapse mode
not so great battery life (470 per charge)
60
weather sealing
decent MP (24 megapixels)
display is selfie friendly
does not have Time Lapse recording
bad battery power (500 shots)
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Landscape Comparison

Sony A77 Landscape photography information
Sony A99 Landscape photography information
71
you can focus manually
change lenses (Sony/Minolta Alpha mount)
decent sized screen (3 inch)
image stabilization (Sensor based)
sensor resolution is decent (24MP)
good sensor size (APS-C)
delivers RAW formats
environment proof
not so great battery life (470 CIPA)
missing Timelapse mode
75
you can focus manually
swap lenses (Sony/Minolta Alpha mount)
pretty good screen size (3 inches)
has image stabilization (Sensor based)
decent MP (24MP)
sensor size is great (Full frame)
above average ISO range (25,600)
exports RAW formats
weather sealing
two card slots
bad battery power (500 shots)
does not have Time Lapse recording
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Vlogging Comparison

Sony A77 Vlogging advice
Sony A99 Vlogging advice
76
selfie friendly screen
image stabilization (Sensor based)
supports face detect focusing
video res high (1920 x 1080 resolution)
does have microphone jack
76
display is selfie friendly
has image stabilization (Sensor based)
supports face detection autofocus
high quality video (1920 x 1080 resolution)
comes with external mic socket
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Sony A77 vs Sony A99 Specifications

Detailed spec comparison table for Sony A77 and Sony A99
 Sony SLT-A77Sony SLT-A99
General Information
Company Sony Sony
Model type Sony SLT-A77 Sony SLT-A99
Class Advanced DSLR Advanced DSLR
Introduced 2011-10-25 2012-12-12
Physical type Mid-size SLR Mid-size SLR
Sensor Information
Powered by Bionz Bionz
Sensor type CMOS CMOS
Sensor size APS-C Full frame
Sensor dimensions 23.5 x 15.6mm 35.8 x 23.8mm
Sensor area 366.6mm² 852.0mm²
Sensor resolution 24MP 24MP
Anti alias filter
Aspect ratio 3:2 and 16:9 3:2 and 16:9
Highest resolution 6000 x 4000 6000 x 4000
Highest native ISO 16000 25600
Highest boosted ISO 25600 -
Lowest native ISO 50 100
RAW data
Autofocusing
Manual focusing
Touch focus
Autofocus continuous
Single autofocus
Autofocus tracking
Autofocus selectice
Autofocus center weighted
Multi area autofocus
Live view autofocus
Face detection focus
Contract detection focus
Phase detection focus
Total focus points 19 19
Cross type focus points 11 11
Lens
Lens support Sony/Minolta Alpha Sony/Minolta Alpha
Number of lenses 143 143
Crop factor 1.5 1
Screen
Type of screen Fully Articulated Fully Articulated
Screen diagonal 3 inch 3 inch
Resolution of screen 921k dots 1,229k dots
Selfie friendly
Liveview
Touch screen
Screen technology - TFT Xtra Fine color LCD
Viewfinder Information
Viewfinder Electronic Electronic
Viewfinder resolution 2,359k dots 2,359k dots
Viewfinder coverage 100 percent 100 percent
Viewfinder magnification 0.73x 0.71x
Features
Lowest shutter speed 30s 30s
Highest shutter speed 1/8000s 1/8000s
Continuous shooting rate 12.0 frames/s 10.0 frames/s
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Set white balance
Image stabilization
Built-in flash
Flash distance 12.00 m no built-in flash
Flash settings Auto, On, Off, Red-Eye, Slow Sync, High Speed Sync, Rear Curtain, Fill-in, Wireless Auto, On, Off, Red-Eye, Slow Sync, High Speed Sync, Rear Curtain, Fill-in, Wireless
Hot shoe
AE bracketing
WB bracketing
Highest flash synchronize 1/250s 1/250s
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Supported video resolutions 1920 x 1080 (60, 24 fps), 1440 x 1080 (30fps), 640 x 424 (29.97 fps) 1920 x 1080 (60, 24 fps), 1440 x 1080 (30fps), 640 x 424 (29.97 fps)
Highest video resolution 1920x1080 1920x1080
Video format MPEG-4, AVCHD, H.264 MPEG-4, AVCHD, H.264
Mic port
Headphone port
Connectivity
Wireless Eye-Fi Connected None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS BuiltIn BuiltIn
Physical
Environment sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 732 gr (1.61 pounds) 812 gr (1.79 pounds)
Physical dimensions 143 x 104 x 81mm (5.6" x 4.1" x 3.2") 147 x 111 x 78mm (5.8" x 4.4" x 3.1")
DXO scores
DXO All around rating 78 89
DXO Color Depth rating 24.0 25.0
DXO Dynamic range rating 13.2 14.0
DXO Low light rating 801 1555
Other
Battery life 470 photographs 500 photographs
Form of battery Battery Pack Battery Pack
Battery ID NP-FM500H NP-FM500H
Self timer Yes (2 or 10 sec) Yes (2 or 10 sec)
Time lapse feature
Storage type SD/SDHC/SDXC/Memory Stick Pro Duo/ Pro-HG Duo Memory Stick PRO Duo/Pro-HG Duo; SD, SDHC and SDXC
Card slots Single Two
Launch price $900 $1,998