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Sony A6400 vs Sony A99

Portability
83
Imaging
70
Features
88
Overall
77
Sony Alpha a6400 front
 
Sony SLT-A99 front
Portability
57
Imaging
70
Features
88
Overall
77

Sony A6400 vs Sony A99 Key Specs

Sony A6400
(Full Review)
  • 24MP - APS-C Sensor
  • 3" Tilting Display
  • ISO 100 - 32000 (Bump to 102400)
  • 3840 x 2160 video
  • Sony E Mount
  • 403g - 120 x 67 x 50mm
  • Announced January 2019
Sony A99
(Full Review)
  • 24MP - Full frame Sensor
  • 3" Fully Articulated Display
  • 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
  • Released December 2012
  • Replaced the Sony A900
  • Renewed by Sony A99 II
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Sony A6400 vs Sony A99 Overview

Its time to look more in depth at the Sony A6400 and Sony A99, former being a Advanced Mirrorless while the other is a Advanced DSLR and both are designed by Sony. The sensor resolution of the A6400 (24MP) and the A99 (24MP) is very comparable but the A6400 (APS-C) and A99 (Full frame) provide totally different sensor measurements.

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The A6400 was revealed 6 years later than the A99 and that is a fairly sizable difference as far as camera technology is concerned. The two cameras feature different body design with the Sony A6400 being a Rangefinder-style mirrorless camera and the Sony A99 being a Mid-size SLR camera.

Before we go into a thorough comparison, here is a quick introduction of how the A6400 matches up versus the A99 for portability, imaging, features and an overall grade.

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Reasons to pick Sony A6400 over the Sony A99

 A6400 A99 
ReleasedJanuary 2019December 2012More recent by 75 months
Touch display Easily navigate

Reasons to pick Sony A99 over the Sony A6400

 A99 A6400 
Display typeFully ArticulatedTiltingFully Articulating display
Display resolution1229k922kClearer display (+307k dot)

Common features in the Sony A6400 and Sony A99

 A6400 A99 
Focus manually Very exact focus
Display size3"3"Same display measurements
Selfie screen Both good for selfies

Sony A6400 vs Sony A99 Physical Comparison

For anybody who is going to lug around your camera frequently, you'll need to consider its weight and proportions. The Sony A6400 enjoys external measurements of 120mm x 67mm x 50mm (4.7" x 2.6" x 2.0") having a weight of 403 grams (0.89 lbs) and the Sony A99 has measurements 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 A6400 and Sony A99 in our brand new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Bear in mind, the weight of an ILC will vary based on the lens you have attached at the time. Here is a front view proportions comparison of the A6400 vs the A99.

Sony A6400 vs Sony A99 size comparison

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

Sony A6400 vs Sony A99 top view buttons comparison

Sony A6400 vs Sony A99 Sensor Comparison

Sometimes, its tough to envision the difference in sensor measurements only by going through technical specs. The photograph here might offer you a greater sense of the sensor measurements in the A6400 and A99.

As you can tell, each of these cameras come with the identical megapixel count but not the same sensor measurements. The A6400 has got the smaller sensor which is going to make obtaining bokeh more difficult. The younger A6400 is going to have an advantage in sensor innovation.

Sony A6400 vs Sony A99 sensor size comparison

Sony A6400 vs Sony A99 Screen and ViewFinder

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

Portrait Comparison

Sony A6400 Portrait photography details
Sony A99 Portrait photography details
82
focusing manually
megapixel count decent (24 megapixels)
good sensor size (APS-C)
features face detection focusing
delivers RAW formats
82
focusing manually
good resolution (24 megapixels)
sensor size is great (Full frame)
supports face detection focus
supports RAW files
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Street Comparison

Sony A6400 Street photography advice
Sony A99 Street photography advice
81
screen tilts
good sensor size (APS-C)
delivers RAW formats
supports focus via touch
weather sealing
very good ISO range (32,000)
no image stabilization
75
screen articulates fully
image stabilization (Sensor based)
sensor size is great (Full frame)
supports RAW files
environment sealing
very good ISO range (25,600)
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Sports Comparison

Sony A6400 Sports photography info
Sony A99 Sports photography info
76
megapixel count decent (24MP)
good sensor size (APS-C)
features tracking autofocus
weather sealing
supports phase detect AF
no image stabilization
78
max shutter speed is good (1/8,000s)
image stabilization (Sensor based)
good resolution (24 megapixels)
sensor size is great (Full frame)
supports tracking autofocus
environment sealing
sensor has phase detect auto focus
bad battery pack (500 CIPA)
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Travel Comparison

Sony A6400 as a Travel photography camera
Sony A99 as a Travel photography camera
87
weather sealing
supports bluetooth
supports focus via touch
megapixel count decent (24 megapixels)
has built in flash
selfie friendly display
60
environment sealing
good resolution (24MP)
screen is selfie friendly
missing Time Lapse mode
bad battery pack (500 shots)
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Landscape Comparison

Sony A6400 Landscape photography factors
Sony A99 Landscape photography factors
80
focusing manually
swap lenses (Sony E mount)
nice screen size (3")
megapixel count decent (24 megapixels)
good sensor size (APS-C)
very good ISO range (32,000)
delivers RAW formats
weather sealing
no image stabilization
75
focusing manually
switch lenses (Sony/Minolta Alpha mount)
good sized screen (3")
image stabilization (Sensor based)
good resolution (24 megapixels)
sensor size is great (Full frame)
very good ISO range (25,600)
supports RAW files
environment sealing
has double storage slots
bad battery pack (500 CIPA)
missing Time Lapse mode
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Vlogging Comparison

Sony A6400 Vlogging details
Sony A99 Vlogging details
80
selfie friendly display
touchscreen functionality
features face detection focusing
high res video (3840 x 2160 pxls)
comes with external microphone port
no image stabilization
76
screen is selfie friendly
image stabilization (Sensor based)
supports face detection focus
video res high (1920 x 1080 pixels)
includes external mic port
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Sony A6400 vs Sony A99 Specifications

Detailed spec comparison table for Sony A6400 and Sony A99
 Sony Alpha a6400Sony SLT-A99
General Information
Manufacturer Sony Sony
Model Sony Alpha a6400 Sony SLT-A99
Category Advanced Mirrorless Advanced DSLR
Announced 2019-01-15 2012-12-12
Body design Rangefinder-style mirrorless Mid-size SLR
Sensor Information
Chip Bionz X 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 24 megapixels 24 megapixels
Anti aliasing filter
Aspect ratio 1:1, 3:2 and 16:9 3:2 and 16:9
Peak resolution 6000 x 4000 6000 x 4000
Highest native ISO 32000 25600
Highest enhanced ISO 102400 -
Lowest native ISO 100 100
RAW pictures
Autofocusing
Manual focus
AF touch
AF continuous
AF single
AF tracking
Selective AF
AF center weighted
Multi area AF
AF live view
Face detect AF
Contract detect AF
Phase detect AF
Number of focus points 425 19
Cross focus points - 11
Lens
Lens mounting type Sony E Sony/Minolta Alpha
Amount of lenses 121 143
Focal length multiplier 1.5 1
Screen
Range of display Tilting Fully Articulated
Display diagonal 3 inches 3 inches
Resolution of display 922 thousand dot 1,229 thousand dot
Selfie friendly
Liveview
Touch capability
Display technology - TFT Xtra Fine color LCD
Viewfinder Information
Viewfinder Electronic Electronic
Viewfinder resolution 2,359 thousand dot 2,359 thousand dot
Viewfinder coverage 100% 100%
Viewfinder magnification 0.7x 0.71x
Features
Min shutter speed 30s 30s
Max shutter speed 1/4000s 1/8000s
Continuous shutter speed 11.0 frames/s 10.0 frames/s
Shutter priority
Aperture priority
Manual exposure
Exposure compensation Yes Yes
Change WB
Image stabilization
Inbuilt flash
Flash range 6.00 m (at ISO 100) no built-in flash
Flash settings Off, auto, on, slow sync, rear sync, redeye reduction, wireless, hi-speed sync Auto, On, Off, Red-Eye, Slow Sync, High Speed Sync, Rear Curtain, Fill-in, Wireless
Hot shoe
Auto exposure bracketing
WB bracketing
Max flash sync - 1/250s
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Video resolutions 3840 x 2160 @ 30p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM 1920 x 1080 (60, 24 fps), 1440 x 1080 (30fps), 640 x 424 (29.97 fps)
Highest video resolution 3840x2160 1920x1080
Video data format MPEG-4, H.264, XAVC-S MPEG-4, AVCHD, H.264
Mic jack
Headphone jack
Connectivity
Wireless Built-In None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None BuiltIn
Physical
Environmental seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 403g (0.89 pounds) 812g (1.79 pounds)
Physical dimensions 120 x 67 x 50mm (4.7" x 2.6" x 2.0") 147 x 111 x 78mm (5.8" x 4.4" x 3.1")
DXO scores
DXO Overall score 83 89
DXO Color Depth score 24.0 25.0
DXO Dynamic range score 13.6 14.0
DXO Low light score 1431 1555
Other
Battery life 410 photos 500 photos
Battery form Battery Pack Battery Pack
Battery model NP-FW50 NP-FM500H
Self timer Yes Yes (2 or 10 sec)
Time lapse shooting
Type of storage SD/SDHC/SDXC/Memory Stick DUO (UHS-I compliant) Memory Stick PRO Duo/Pro-HG Duo; SD, SDHC and SDXC
Storage slots 1 Two
Retail cost $898 $1,998