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Panasonic G9 vs Sony A7R III

Portability
62
Imaging
60
Features
90
Overall
72
Panasonic Lumix DC-G9 front
 
Sony Alpha A7R III front
Portability
63
Imaging
78
Features
93
Overall
84

Panasonic G9 vs Sony A7R III Key Specs

Panasonic G9
(Full Review)
  • 20MP - Four Thirds Sensor
  • 3" Fully Articulated Display
  • ISO 200 - 25600
  • Sensor based 5-axis Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Max Shutter
  • 3840 x 2160 video
  • Micro Four Thirds Mount
  • 658g - 137 x 97 x 92mm
  • Announced November 2017
Sony A7R III
(Full Review)
  • 42MP - Full frame Sensor
  • 3" Tilting Screen
  • ISO 100 - 32000 (Raise to 102400)
  • Sensor based 5-axis Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Max Shutter
  • 3840 x 2160 video
  • Sony E Mount
  • 657g - 127 x 96 x 74mm
  • Introduced October 2017
  • Superseded the Sony A7R II
  • Renewed by Sony A7R IV
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Panasonic G9 vs Sony A7R III Overview

Here, we will be comparing the Panasonic G9 versus Sony A7R III, both Pro Mirrorless cameras by manufacturers Panasonic and Sony. There exists a sizeable gap among the resolutions of the G9 (20MP) and A7R III (42MP) and the G9 (Four Thirds) and A7R III (Full frame) provide different sensor size.

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The G9 was released very close to the A7R III and they are of a similar generation. Both of the cameras feature the same body design (SLR-style mirrorless).

Before diving right into a full comparison, here is a simple introduction of how the G9 matches up vs the A7R III in terms of portability, imaging, features and an overall mark.

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Reasons to pick Panasonic G9 over the Sony A7R III

 G9 A7R III 
Screen typeFully ArticulatedTiltingFully Articulating screen
Selfie screen Take selfies

Reasons to pick Sony A7R III over the Panasonic G9

 A7R III G9 
Screen resolution1440k1040kCrisper screen (+400k dot)

Common features in the Panasonic G9 and Sony A7R III

 G9 A7R III 
IntroducedNovember 2017October 2017Same generation
Focus manually More exact focusing
Screen size3"3"Same screen size
Touch friendly screen Quickly navigate

Panasonic G9 vs Sony A7R III Physical Comparison

If you're intending to travel with your camera regularly, you need to consider its weight and volume. The Panasonic G9 comes with outer measurements of 137mm x 97mm x 92mm (5.4" x 3.8" x 3.6") having a weight of 658 grams (1.45 lbs) whilst the Sony A7R III has sizing of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") accompanied by a weight of 657 grams (1.45 lbs).

Examine the Panasonic G9 versus Sony A7R III in the new Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Do not forget, the weight of an Interchangeable Lens Camera will differ based on the lens you are using during that time. The following is a front view scale comparison of the G9 and the A7R III.

Panasonic G9 vs Sony A7R III size comparison

Looking at dimensions and weight, the portability score of the G9 and A7R III is 62 and 63 respectively.

Panasonic G9 vs Sony A7R III top view buttons comparison

Panasonic G9 vs Sony A7R III Sensor Comparison

Typically, it is very difficult to imagine the difference in sensor dimensions just by checking out specs. The pic underneath will offer you a far better sense of the sensor measurements in the G9 and A7R III.

As you can plainly see, each of these cameras feature different resolutions and different sensor dimensions. The G9 because of its smaller sensor is going to make getting shallower DOF more challenging and the Sony A7R III will show extra detail as a result of its extra 22MP. Higher resolution will enable you to crop photographs way more aggressively.

Panasonic G9 vs Sony A7R III sensor size comparison

Panasonic G9 vs Sony A7R III Screen and ViewFinder

Panasonic G9 vs Sony A7R III Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Portrait photography with Panasonic G9
Portrait photography with Sony A7R III
76
focusing manually
good resolution (20 megapixels)
sensor size is nice (Four Thirds)
features face detect autofocus
exports RAW formats
86
you can focus manually
amazing resolution (42MP)
big sensor size (Full frame)
comes with face detection focus
saves RAW files
Photography Glossary

Street Comparison

Street photography with Panasonic G9
Street photography with Sony A7R III
75
fully articulated screen
has image stabilization (Sensor based 5-axis)
sensor size is nice (Four Thirds)
exports RAW formats
boasts focus by touch
environment proofing
great ISO range (25,600)
79
tilting screen
has image stabilization (Sensor based 5-axis)
big sensor size (Full frame)
saves RAW files
offers focus by touch
environment proofing
above average high ISO (32,000)
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Sports Comparison

Panasonic G9 Sports photography highlights
Sony A7R III Sports photography highlights
70
maximum shutter speed is high (1/8,000s)
quiet mode (1/32,000s)
fast shooting (20.0 fps)
has image stabilization (Sensor based 5-axis)
good resolution (20 megapixels)
sensor size is nice (Four Thirds)
features tracking focus
environment proofing
bad battery power (400 CIPA)
doesn't have phase detect autofocus
89
great max shutter speed (1/8,000s)
has image stabilization (Sensor based 5-axis)
amazing resolution (42MP)
big sensor size (Full frame)
comes with tracking autofocus
environment proofing
great battery (650 per charge)
sensor has phase detect auto focus
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Travel Comparison

Panasonic G9 Travel photography advice
Sony A7R III Travel photography advice
70
environment proofing
supports bluetooth
boasts focus by touch
good resolution (20MP)
display is selfie friendly
bad battery power (400 per charge)
74
great battery (650 shots)
environment proofing
supports bluetooth
offers focus by touch
amazing resolution (42 megapixels)
display isn't selfie friendly
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Landscape Comparison

Panasonic G9 Landscape photography information
Sony A7R III Landscape photography information
76
focusing manually
switch lenses (Micro Four Thirds mount)
nice screen size (3 inches)
has image stabilization (Sensor based 5-axis)
good resolution (20MP)
sensor size is nice (Four Thirds)
doesnt have low pass filter
great ISO range (25,600)
exports RAW formats
environment proofing
2 card slots
bad battery power (400 shots)
87
you can focus manually
switch lenses (Sony E mount)
screen size is good (3 inches)
has image stabilization (Sensor based 5-axis)
amazing resolution (42 megapixels)
big sensor size (Full frame)
no anti aliasing filter
above average high ISO (32,000)
saves RAW files
environment proofing
great battery (650 CIPA)
two card slots
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Vlogging Comparison

Panasonic G9 Vlogging information
Sony A7R III Vlogging information
76
display is selfie friendly
touchscreen
has image stabilization (Sensor based 5-axis)
features face detect autofocus
high res video (3840 x 2160 pxls)
includes microphone support
37
has touchscreen
has image stabilization (Sensor based 5-axis)
comes with face detection focus
high res video (3840 x 2160 pxls)
includes external mic socket
display isn't selfie friendly
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Panasonic G9 vs Sony A7R III Specifications

Detailed spec comparison table for Panasonic G9 and Sony A7R III
 Panasonic Lumix DC-G9Sony Alpha A7R III
General Information
Brand Panasonic Sony
Model Panasonic Lumix DC-G9 Sony Alpha A7R III
Class Pro Mirrorless Pro Mirrorless
Announced 2017-11-08 2017-10-25
Physical type SLR-style mirrorless SLR-style mirrorless
Sensor Information
Chip - Bionz X
Sensor type CMOS BSI-CMOS
Sensor size Four Thirds Full frame
Sensor dimensions 17.3 x 13mm 35.9 x 24mm
Sensor area 224.9mm² 861.6mm²
Sensor resolution 20 megapixel 42 megapixel
Anti aliasing filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2 and 16:9
Highest resolution 5184 x 3888 7952 x 5304
Highest native ISO 25600 32000
Highest boosted ISO - 102400
Min native ISO 200 100
RAW images
Min boosted ISO 100 50
Autofocusing
Manual focus
Touch to focus
Continuous autofocus
Single autofocus
Tracking autofocus
Autofocus selectice
Center weighted autofocus
Autofocus multi area
Live view autofocus
Face detect autofocus
Contract detect autofocus
Phase detect autofocus
Number of focus points 225 425
Lens
Lens mounting type Micro Four Thirds Sony E
Amount of lenses 107 121
Focal length multiplier 2.1 1
Screen
Display type Fully Articulated Tilting
Display diagonal 3" 3"
Display resolution 1,040k dots 1,440k dots
Selfie friendly
Liveview
Touch capability
Viewfinder Information
Viewfinder type Electronic Electronic
Viewfinder resolution 3,680k dots 3,686k dots
Viewfinder coverage 100 percent 100 percent
Viewfinder magnification 0.83x 0.78x
Features
Slowest shutter speed 60 secs 30 secs
Maximum shutter speed 1/8000 secs 1/8000 secs
Maximum quiet shutter speed 1/32000 secs -
Continuous shooting rate 20.0 frames per sec 10.0 frames per sec
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Custom white balance
Image stabilization
Inbuilt flash
Flash range no built-in flash no built-in flash
Flash settings Auto, Auto/Red-eye Reduction, Forced On, Forced On/Red-eye Reduction, Slow Sync., Slow Sync./Red-eye Reduction, Forced Off Off, Auto, Fill-flash, Slow Sync, Rear Sync, Red-eye reduction, Wireless, Hi-speed sync
External flash
AE bracketing
WB bracketing
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Video resolutions 3840 x 2160 @ 60p / 150 Mbps, MP4, H.264, Linear PCM 3840 x 2160 (30p, 25p, 24p), 1920 x 1080 (60p, 60i, 24p), 1440 x 1080 (30p), 640 x 480 (30p)
Highest video resolution 3840x2160 3840x2160
Video data format MPEG-4, AVCHD, H.264 MPEG-4, AVCHD, XAVC S
Mic port
Headphone port
Connectivity
Wireless Built-In Built-In
Bluetooth
NFC
HDMI
USB USB 3.0 (5 GBit/sec) USB 3.1 Gen 1(5 GBit/sec)
GPS None None
Physical
Environmental sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 658 grams (1.45 lb) 657 grams (1.45 lb)
Physical dimensions 137 x 97 x 92mm (5.4" x 3.8" x 3.6") 127 x 96 x 74mm (5.0" x 3.8" x 2.9")
DXO scores
DXO All around score not tested 100
DXO Color Depth score not tested 26.0
DXO Dynamic range score not tested 14.7
DXO Low light score not tested 3523
Other
Battery life 400 shots 650 shots
Type of battery Battery Pack Battery Pack
Battery model DMW-BLF19 NP-FZ100
Self timer Yes Yes (2 or 10 sec; continuous (3 or 5 exposures))
Time lapse feature
Type of storage Dual SD/SDHC/SDXC slots (UHS-II supported) Two SD/SDHC/SDXC slots (UHS-II support on one)
Card slots Two Two
Retail pricing $1,500 $2,800