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Panasonic GX9 vs Sony A77 II

Portability
82
Imaging
60
Features
80
Overall
68
Panasonic Lumix DC-GX9 front
 
Sony SLT-A77 II front
Portability
62
Imaging
65
Features
85
Overall
73

Panasonic GX9 vs Sony A77 II Key Specs

Panasonic GX9
(Full Review)
  • 20MP - Four Thirds Sensor
  • 3" Tilting Screen
  • ISO 200 - 25600
  • Sensor based 5-axis Image Stabilization
  • No Anti-Alias Filter
  • 3840 x 2160 video
  • Micro Four Thirds Mount
  • 407g - 124 x 72 x 47mm
  • Launched February 2018
Sony A77 II
(Full Review)
  • 24MP - APS-C Sensor
  • 3" Fully Articulated Screen
  • ISO 50 - 25600
  • Sensor based Image Stabilization
  • 1/8000s Max Shutter
  • 1920 x 1080 video
  • Sony/Minolta Alpha Mount
  • 647g - 143 x 104 x 81mm
  • Announced May 2014
  • Old Model is Sony A77
Photography Glossary

Panasonic GX9 vs Sony A77 II Overview

Its time to look much closer at the Panasonic GX9 and Sony A77 II, one is a Advanced Mirrorless and the latter is a Advanced DSLR by competitors Panasonic and Sony. The sensor resolution of the GX9 (20MP) and the A77 II (24MP) is pretty close but the GX9 (Four Thirds) and A77 II (APS-C) come with different sensor sizes.

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The GX9 was launched 3 years after the A77 II which is a fairly serious gap as far as camera technology is concerned. Both cameras offer different body type with the Panasonic GX9 being a Rangefinder-style mirrorless camera and the Sony A77 II being a Mid-size SLR camera.

Before diving in to a in-depth comparison, below is a brief summation of how the GX9 scores vs the A77 II with regard to portability, imaging, features and an overall score.

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Reasons to pick Panasonic GX9 over the Sony A77 II

 GX9 A77 II 
AnnouncedFebruary 2018May 2014More modern by 46 months
Screen resolution1240k1229kClearer screen (+11k dot)
Touch friendly screen Quickly navigate

Reasons to pick Sony A77 II over the Panasonic GX9

 A77 II GX9 
Screen typeFully ArticulatedTiltingFully Articulating screen
Selfie screen Easy selfies

Common features in the Panasonic GX9 and Sony A77 II

 GX9 A77 II 
Focus manually Very accurate focusing
Screen sizing3"3"Equivalent screen dimensions

Panasonic GX9 vs Sony A77 II Physical Comparison

For anyone who is looking to carry around your camera often, you will want to take into account its weight and size. The Panasonic GX9 provides outside dimensions of 124mm x 72mm x 47mm (4.9" x 2.8" x 1.9") having a weight of 407 grams (0.90 lbs) whilst the Sony A77 II has specifications of 143mm x 104mm x 81mm (5.6" x 4.1" x 3.2") having a weight of 647 grams (1.43 lbs).

Contrast the Panasonic GX9 and Sony A77 II in the latest Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Don't forget, the weight of an Interchangeable Lens Camera will change based on the lens you are using at the time. Following is the front view physical size comparison of the GX9 vs the A77 II.

Panasonic GX9 vs Sony A77 II size comparison

Taking into account dimensions and weight, the portability grade of the GX9 and A77 II is 82 and 62 respectively.

Panasonic GX9 vs Sony A77 II top view buttons comparison

Panasonic GX9 vs Sony A77 II Sensor Comparison

Quite often, it is hard to imagine the gap in sensor sizes merely by viewing specs. The image below will help give you a stronger sense of the sensor sizes in the GX9 and A77 II.

All in all, both of the cameras offer different megapixels and different sensor sizes. The GX9 due to its smaller sensor is going to make getting shallow depth of field more challenging and the Sony A77 II will provide you with extra detail utilizing its extra 4 Megapixels. Higher resolution will also allow you to crop photographs a little more aggressively. The younger GX9 should have an edge with regard to sensor tech.

Panasonic GX9 vs Sony A77 II sensor size comparison

Panasonic GX9 vs Sony A77 II Screen and ViewFinder

Panasonic GX9 vs Sony A77 II Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Panasonic GX9 as a Portrait photography camera
Sony A77 II as a Portrait photography camera
76
has manual focus
decent MP (20 megapixels)
sensor size is good (Four Thirds)
comes with face detection autofocus
saves RAW files
79
manual focus
decent sensor resolution (24MP)
decent sensor size (APS-C)
supports face detect autofocus
supports RAW formats
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Street Comparison

Panasonic GX9 Street photography factors
Sony A77 II Street photography factors
84
screen tilts
has image stabilization (Sensor based 5-axis)
sensor size is good (Four Thirds)
saves RAW files
comes with focus via touch
above average high ISO (25,600)
76
screen articulates
image stabilization (Sensor based)
decent sensor size (APS-C)
supports RAW formats
environment sealing
above average high ISO (25,600)
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Sports Comparison

Panasonic GX9 as a Sports photography camera
Sony A77 II as a Sports photography camera
72
silent shooting (1/16,000 seconds)
has image stabilization (Sensor based 5-axis)
decent MP (20MP)
sensor size is good (Four Thirds)
comes with tracking autofocus
comes with phase detect autofocus
not so great battery (260 CIPA)
76
high shutter speed (1/8,000s)
image stabilization (Sensor based)
decent sensor resolution (24MP)
decent sensor size (APS-C)
supports tracking focus
environment sealing
supports phase detect autofocus
not so great battery pack (480 CIPA)
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Travel Comparison

Travel photography with Panasonic GX9
Travel photography with Sony A77 II
71
connects via bluetooth
comes with focus via touch
decent MP (20MP)
has built in flash
not so great battery (260 CIPA)
screen isn't selfie friendly
64
environment sealing
decent sensor resolution (24MP)
built-in flash
selfie friendly screen
doesn't have Time Lapse function
not so great battery pack (480 per charge)
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Landscape Comparison

Panasonic GX9 Landscape photography factors
Sony A77 II Landscape photography factors
77
has manual focus
change lenses (Micro Four Thirds mount)
pretty good screen size (3")
has image stabilization (Sensor based 5-axis)
decent MP (20MP)
sensor size is good (Four Thirds)
no low pass filter
above average high ISO (25,600)
saves RAW files
not so great battery (260 CIPA)
73
manual focus
swap lenses (Sony/Minolta Alpha mount)
screen size is good (3")
image stabilization (Sensor based)
decent sensor resolution (24MP)
decent sensor size (APS-C)
above average high ISO (25,600)
supports RAW formats
environment sealing
not so great battery pack (480 CIPA)
doesn't have Time Lapse function
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Vlogging Comparison

Panasonic GX9 Vlogging details
Sony A77 II Vlogging details
35
touchscreen capability
has image stabilization (Sensor based 5-axis)
comes with face detection autofocus
video resolution high (3840 x 2160 pxls)
screen isn't selfie friendly
lack of external microphone socket
77
selfie friendly screen
image stabilization (Sensor based)
supports face detect autofocus
video resolution high (1920 x 1080 resolution)
comes with mic socket
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Panasonic GX9 vs Sony A77 II Specifications

Detailed spec comparison table for Panasonic GX9 and Sony A77 II
 Panasonic Lumix DC-GX9Sony SLT-A77 II
General Information
Make Panasonic Sony
Model type Panasonic Lumix DC-GX9 Sony SLT-A77 II
Class Advanced Mirrorless Advanced DSLR
Launched 2018-02-13 2014-05-21
Physical type Rangefinder-style mirrorless Mid-size SLR
Sensor Information
Processor Chip Venus Engine Bionz X
Sensor type CMOS CMOS
Sensor size Four Thirds APS-C
Sensor dimensions 17.3 x 13mm 23.5 x 15.6mm
Sensor surface area 224.9mm² 366.6mm²
Sensor resolution 20 megapixel 24 megapixel
Anti alias filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2 and 16:9
Max resolution 5184 x 3888 6000 x 4000
Max native ISO 25600 25600
Minimum native ISO 200 50
RAW data
Minimum enhanced ISO 100 -
Autofocusing
Manual focusing
AF touch
AF continuous
Single AF
AF tracking
AF selectice
Center weighted AF
Multi area AF
Live view AF
Face detection focusing
Contract detection focusing
Phase detection focusing
Total focus points 49 79
Cross type focus points - 15
Lens
Lens support Micro Four Thirds Sony/Minolta Alpha
Total lenses 107 143
Focal length multiplier 2.1 1.5
Screen
Type of screen Tilting Fully Articulated
Screen size 3" 3"
Resolution of screen 1,240k dots 1,229k dots
Selfie friendly
Liveview
Touch operation
Viewfinder Information
Viewfinder type Electronic Electronic
Viewfinder resolution 2,760k dots 2,359k dots
Viewfinder coverage 100 percent 100 percent
Viewfinder magnification 0.7x 0.73x
Features
Min shutter speed 60 seconds 30 seconds
Max shutter speed 1/4000 seconds 1/8000 seconds
Max silent shutter speed 1/16000 seconds -
Continuous shutter rate 9.0 frames per sec 12.0 frames per sec
Shutter priority
Aperture priority
Manual mode
Exposure compensation Yes Yes
Change WB
Image stabilization
Inbuilt flash
Flash distance 6.00 m (at ISO 200) 12.00 m (at ISO 100)
Flash settings Auto, auto w/redeye reduction, forced on, forced on w/redeye reduction, slow sync, slow sync w/redeye reduction, forced off Auto, fill, rear sync, slow sync
Hot shoe
AEB
WB bracketing
Max flash synchronize - 1/250 seconds
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Supported video resolutions - 1920 x 1080 (60p, 60i, 30p), 1440 x 1080 (30p), 640 x 480 (30p)
Max video resolution 3840x2160 1920x1080
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 Yes USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environmental sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 407g (0.90 lbs) 647g (1.43 lbs)
Dimensions 124 x 72 x 47mm (4.9" x 2.8" x 1.9") 143 x 104 x 81mm (5.6" x 4.1" x 3.2")
DXO scores
DXO Overall rating not tested 82
DXO Color Depth rating not tested 24.4
DXO Dynamic range rating not tested 13.4
DXO Low light rating not tested 1013
Other
Battery life 260 photographs 480 photographs
Style of battery Battery Pack Battery Pack
Battery ID - NP-FM500H
Self timer Yes (2 or 10 secs, 3 photos over 10 secs) Yes (Yes (2 or 12 sec))
Time lapse shooting
Storage type SD/SDHC/SDXC card (UHS-I supported) SD/ SDHC/SDXC, Memory Stick Pro Duo/ Pro-HG Duo
Card slots One One
Price at release $1,000 $1,198