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Sony A99 II vs Sony A6400

Portability
57
Imaging
77
Features
92
Overall
83
Sony Alpha A99 II front
 
Sony Alpha a6400 front
Portability
83
Imaging
69
Features
88
Overall
76

Sony A99 II vs Sony A6400 Key Specs

Sony A99 II
(Full Review)
  • 42MP - Full frame Sensor
  • 3" Fully Articulated Screen
  • ISO 100 - 25600 (Raise to 102400)
  • Sensor based 5-axis Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Max Shutter
  • 3840 x 2160 video
  • Sony/Minolta Alpha Mount
  • 849g - 143 x 104 x 76mm
  • Released September 2016
  • Old Model is Sony A99
Sony A6400
(Full Review)
  • 24MP - APS-C Sensor
  • 3" Tilting Screen
  • ISO 100 - 32000 (Increase to 102400)
  • 3840 x 2160 video
  • Sony E Mount
  • 403g - 120 x 67 x 50mm
  • Launched January 2019
Photography Glossary

Sony A99 II vs Sony A6400 Overview

Below is a thorough overview of the Sony A99 II versus Sony A6400, former being a Advanced DSLR while the latter is a Advanced Mirrorless and they are both designed by Sony. There exists a large gap between the resolutions of the A99 II (42MP) and A6400 (24MP) and the A99 II (Full frame) and A6400 (APS-C) boast totally different sensor dimensions.

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The A99 II was announced 3 years prior to the A6400 and that is quite a serious difference as far as technology is concerned. Both cameras have different body design with the Sony A99 II being a Mid-size SLR camera and the Sony A6400 being a Rangefinder-style mirrorless camera.

Before going right into a thorough comparison, here is a quick highlight of how the A99 II scores against the A6400 in regards to portability, imaging, features and an overall grade.

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Reasons to pick Sony A99 II over the Sony A6400

 A99 II A6400 
Screen typeFully articulatedTiltingFully Articulating screen
Screen resolution1229k922kSharper screen (+307k dot)

Reasons to pick Sony A6400 over the Sony A99 II

 A6400 A99 II 
LaunchedJanuary 2019September 2016More recent by 28 months
Touch screen Quickly navigate

Common features in the Sony A99 II and Sony A6400

 A99 II A6400 
Focus manually Dial exact focus
Screen dimensions3"3"Equal screen sizing
Selfie screen Both are selfie friendly

Sony A99 II vs Sony A6400 Physical Comparison

When you are intending to lug around your camera often, you'll need to factor in its weight and size. The Sony A99 II enjoys outside dimensions of 143mm x 104mm x 76mm (5.6" x 4.1" x 3.0") having a weight of 849 grams (1.87 lbs) whilst the Sony A6400 has specifications of 120mm x 67mm x 50mm (4.7" x 2.6" x 2.0") and a weight of 403 grams (0.89 lbs).

Analyze the Sony A99 II versus Sony A6400 in our brand new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Bear in mind, the weight of an ILC will differ depending on the lens you are using at that time. Here is a front view sizing comparison of the A99 II vs the A6400.

Sony A99 II vs Sony A6400 size comparison

Using dimensions and weight, the portability score of the A99 II and A6400 is 57 and 83 respectively.

Sony A99 II vs Sony A6400 top view buttons comparison

Sony A99 II vs Sony A6400 Sensor Comparison

Quite often, it can be difficult to envision the difference between sensor measurements only by reviewing technical specs. The graphic underneath might give you a greater sense of the sensor dimensions in the A99 II and A6400.

As you can tell, the two cameras have different resolutions and different sensor measurements. The A99 II having a bigger sensor will make getting bokeh less difficult and the Sony A99 II will offer greater detail with its extra 18MP. Higher resolution will also enable you to crop pictures a bit more aggressively. The older A99 II is going to be behind when it comes to sensor technology.

Sony A99 II vs Sony A6400 sensor size comparison

Sony A99 II vs Sony A6400 Screen and ViewFinder

Sony A99 II vs Sony A6400 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Sony A99 II as a Portrait photography camera
Sony A6400 as a Portrait photography camera
86
has manual focus
great MP (42 megapixels)
sensor size is large (Full frame)
supports face detect focusing
delivers RAW formats
81
you can focus manually
decent MP (24MP)
sensor size is good (APS-C)
includes face detect focus
delivers RAW files
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Street Comparison

Sony A99 II Street photography details
Sony A6400 Street photography details
76
built in image stabilization (Sensor based 5-axis)
sensor size is large (Full frame)
delivers RAW formats
weather proofing
great high ISO (25,600)
81
screen tilts up and down
sensor size is good (APS-C)
delivers RAW files
offers touch to focus
environment sealing
very good ISO range (32,000)
lack of image stabilization
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Sports Comparison

Sony A99 II Sports photography factors
Sony A6400 Sports photography factors
82
maximum shutter speed is high (1/8,000 seconds)
built in image stabilization (Sensor based 5-axis)
great MP (42MP)
sensor size is large (Full frame)
supports tracking focus
weather proofing
has phase detect AF
bad battery life (490 CIPA)
76
decent MP (24 megapixels)
sensor size is good (APS-C)
includes tracking focus
environment sealing
sensor has phase detect auto focus
lack of image stabilization
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Travel Comparison

Sony A99 II Travel photography details
Sony A6400 Travel photography details
70
weather proofing
supports bluetooth
great MP (42 megapixels)
screen is selfie friendly
bad battery life (490 shots)
87
environment sealing
supports bluetooth
offers touch to focus
decent MP (24 megapixels)
has built in flash
display is selfie friendly
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Landscape Comparison

Sony A99 II as a Landscape photography camera
Sony A6400 as a Landscape photography camera
82
has manual focus
switch lenses (Sony/Minolta Alpha mount)
screen size is good (3 inches)
built in image stabilization (Sensor based 5-axis)
great MP (42MP)
sensor size is large (Full frame)
doesnt have low pass filter
great high ISO (25,600)
delivers RAW formats
weather proofing
2 card slots
bad battery life (490 shots)
80
you can focus manually
change lenses (Sony E mount)
screen size is decent (3 inch)
decent MP (24MP)
sensor size is good (APS-C)
very good ISO range (32,000)
delivers RAW files
environment sealing
lack of image stabilization
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Vlogging Comparison

Vlogging with Sony A99 II
Vlogging with Sony A6400
78
screen is selfie friendly
built in image stabilization (Sensor based 5-axis)
supports face detect focusing
high quality video (3840 x 2160 pixels)
has microphone support
80
display is selfie friendly
screen is touchscreen
includes face detect focus
high quality video (3840 x 2160 pixels)
includes mic port
lack of image stabilization
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Sony A99 II vs Sony A6400 Specifications

Detailed spec comparison table for Sony A99 II and Sony A6400
 Sony Alpha A99 IISony Alpha a6400
General Information
Company Sony Sony
Model Sony Alpha A99 II Sony Alpha a6400
Category Advanced DSLR Advanced Mirrorless
Released 2016-09-19 2019-01-15
Body design Mid-size SLR Rangefinder-style mirrorless
Sensor Information
Processor Chip Bionz X Bionz X
Sensor type BSI-CMOS CMOS
Sensor size Full frame APS-C
Sensor dimensions 35.9 x 24mm 23.5 x 15.6mm
Sensor surface area 861.6mm² 366.6mm²
Sensor resolution 42 megapixels 24 megapixels
Anti aliasing filter
Aspect ratio 3:2 and 16:9 1:1, 3:2 and 16:9
Peak resolution 7952 x 5304 6000 x 4000
Highest native ISO 25600 32000
Highest enhanced ISO 102400 102400
Min native ISO 100 100
RAW pictures
Min enhanced ISO 50 -
Autofocusing
Focus manually
Autofocus touch
Autofocus continuous
Single autofocus
Autofocus tracking
Autofocus selectice
Center weighted autofocus
Multi area autofocus
Live view autofocus
Face detection focus
Contract detection focus
Phase detection focus
Number of focus points 399 425
Cross focus points 79 -
Lens
Lens mounting type Sony/Minolta Alpha Sony E
Total lenses 143 121
Focal length multiplier 1 1.5
Screen
Range of screen Fully articulated Tilting
Screen size 3 inches 3 inches
Screen resolution 1,229 thousand dot 922 thousand dot
Selfie friendly
Liveview
Touch screen
Viewfinder Information
Viewfinder Electronic Electronic
Viewfinder resolution 2,359 thousand dot 2,359 thousand dot
Viewfinder coverage 100% 100%
Viewfinder magnification 0.78x 0.7x
Features
Minimum shutter speed 30 secs 30 secs
Fastest shutter speed 1/8000 secs 1/4000 secs
Continuous shutter speed 12.0fps 11.0fps
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Custom white balance
Image stabilization
Integrated flash
Flash range no built-in flash 6.00 m (at ISO 100)
Flash modes Off, auto, fill, slow sync, redeye reduction, rear sync, high-speed sync, wireless Off, auto, on, slow sync, rear sync, redeye reduction, wireless, hi-speed sync
External flash
AEB
WB bracketing
Fastest flash sync 1/250 secs -
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Supported video resolutions - 3840 x 2160 @ 30p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM
Highest video resolution 3840x2160 3840x2160
Video file format MPEG-4, AVCHD, XAVC S MPEG-4, H.264, XAVC-S
Mic jack
Headphone jack
Connectivity
Wireless Built-In Built-In
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environmental seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 849 grams (1.87 pounds) 403 grams (0.89 pounds)
Physical dimensions 143 x 104 x 76mm (5.6" x 4.1" x 3.0") 120 x 67 x 50mm (4.7" x 2.6" x 2.0")
DXO scores
DXO Overall score 92 83
DXO Color Depth score 25.4 24.0
DXO Dynamic range score 13.4 13.6
DXO Low light score 2317 1431
Other
Battery life 490 photos 410 photos
Form of battery NP-FM500H lithium-ion battery & charger Battery Pack
Battery model - NP-FW50
Self timer Yes (2, 5, 10 secs) Yes
Time lapse feature
Storage media Dual SD/SDHC/SDXC/MS Duo slots SD/SDHC/SDXC/Memory Stick DUO (UHS-I compliant)
Storage slots Dual Single
Launch cost $3,198 $898