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Panasonic G3 vs Sony A7R III

Portability
83
Imaging
52
Features
62
Overall
56
Panasonic Lumix DMC-G3 front
 
Sony Alpha A7R III front
Portability
63
Imaging
78
Features
93
Overall
84

Panasonic G3 vs Sony A7R III Key Specs

Panasonic G3
(Full Review)
  • 16MP - Four Thirds Sensor
  • 3" Fully Articulated Display
  • ISO 160 - 6400
  • 1920 x 1080 video
  • Micro Four Thirds Mount
  • 336g - 115 x 84 x 47mm
  • Announced July 2011
  • Superseded the Panasonic G2
  • New Model is Panasonic G5
Sony A7R III
(Full Review)
  • 42MP - Full frame Sensor
  • 3" Tilting Screen
  • ISO 100 - 32000 (Push 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
  • Revealed October 2017
  • Succeeded the Sony A7R II
  • Later Model is Sony A7R IV
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Panasonic G3 vs Sony A7R III Overview

The following is a complete assessment of the Panasonic G3 and Sony A7R III, one is a Entry-Level Mirrorless and the latter is a Pro Mirrorless by manufacturers Panasonic and Sony. There is a significant difference between the image resolutions of the G3 (16MP) and A7R III (42MP) and the G3 (Four Thirds) and A7R III (Full frame) provide different sensor dimensions.

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The G3 was brought out 7 years before the A7R III which is quite a sizable gap as far as tech is concerned. Both of the cameras have the same body design (SLR-style mirrorless).

Before delving right into a in-depth comparison, here is a brief synopsis of how the G3 grades against the A7R III with regard to portability, imaging, features and an overall mark.

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Reasons to pick Panasonic G3 over the Sony A7R III

 G3 A7R III 
Screen typeFully ArticulatedTiltingFully Articulating screen
Selfie screen Take selfies

Reasons to pick Sony A7R III over the Panasonic G3

 A7R III G3 
RevealedOctober 2017July 2011Newer by 76 months
Screen resolution1440k460kCrisper screen (+980k dot)

Common features in the Panasonic G3 and Sony A7R III

 G3 A7R III 
Manually focus More accurate focusing
Screen dimensions3"3"Equal screen sizing
Touch friendly screen Quickly navigate

Panasonic G3 vs Sony A7R III Physical Comparison

For those who are planning to travel with your camera often, you will have to take into account its weight and size. The Panasonic G3 comes with physical measurements of 115mm x 84mm x 47mm (4.5" x 3.3" x 1.9") and a weight of 336 grams (0.74 lbs) while the Sony A7R III has specifications of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") and a weight of 657 grams (1.45 lbs).

Analyze the Panasonic G3 and Sony A7R III in the latest Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Keep in mind, the weight of an Interchangeable Lens Camera will change dependant on the lens you are working with at that moment. Following is a front view dimension comparison of the G3 versus the A7R III.

Panasonic G3 vs Sony A7R III size comparison

Using size and weight, the portability grade of the G3 and A7R III is 83 and 63 respectively.

Panasonic G3 vs Sony A7R III top view buttons comparison

Panasonic G3 vs Sony A7R III Sensor Comparison

In many cases, it's tough to imagine the contrast between sensor dimensions simply by reviewing specs. The picture underneath will give you a clearer sense of the sensor measurements in the G3 and A7R III.

As you can plainly see, the two cameras provide different resolutions and different sensor dimensions. The G3 due to its tinier sensor is going to make achieving shallow DOF tougher and the Sony A7R III will offer you extra detail having its extra 26 Megapixels. Higher resolution will help you crop photographs more aggressively. The more aged G3 is going to be behind with regard to sensor innovation.

Panasonic G3 vs Sony A7R III sensor size comparison

Panasonic G3 vs Sony A7R III Screen and ViewFinder

Panasonic G3 vs Sony A7R III Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Panasonic G3 Portrait photography advice
Sony A7R III Portrait photography advice
71
focusing manually
MP count good (16 megapixels)
sensor size is nice (Four Thirds)
has face detection focus
exports RAW formats
86
has manual focus
MP count amazing (42 megapixels)
sensor size is big (Full frame)
includes face detection focus
delivers RAW formats
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Street Comparison

Panasonic G3 Street photography advice
Sony A7R III Street photography advice
75
screen can move to multiple angles
sensor size is nice (Four Thirds)
exports RAW formats
provides touch focus
no image stabilization
79
tilting screen
has image stabilization (Sensor based 5-axis)
sensor size is big (Full frame)
delivers RAW formats
includes focus by touch
environment sealing
great ISO range (32,000)
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Sports Comparison

Panasonic G3 Sports photography info
Sony A7R III Sports photography info
47
MP count good (16 megapixels)
sensor size is nice (Four Thirds)
has tracking autofocus
low fps (4.0 frames per second)
no image stabilization
terrible battery power (270 per charge)
has no phase detect auto focus
89
high shutter speed (1/8,000 seconds)
has image stabilization (Sensor based 5-axis)
MP count amazing (42 megapixels)
sensor size is big (Full frame)
includes tracking autofocus
environment sealing
good battery life (650 shots)
has phase detect auto focus
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Travel Comparison

Travel photography with Panasonic G3
Travel photography with Sony A7R III
70
provides touch focus
MP count good (16 megapixels)
has built in flash
screen is selfie friendly
doesn't have Time Lapse recording
terrible battery power (270 shots)
74
good battery life (650 per charge)
environment sealing
has bluetooth
includes focus by touch
MP count amazing (42MP)
does not have a selfie friendly display
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Landscape Comparison

Panasonic G3 as a Landscape photography camera
Sony A7R III as a Landscape photography camera
62
focusing manually
interchangeable lenses (Micro Four Thirds mount)
good sized screen (3 inch)
MP count good (16 megapixels)
sensor size is nice (Four Thirds)
exports RAW formats
no image stabilization
terrible battery power (270 shots)
doesn't have Time Lapse recording
87
has manual focus
switch lenses (Sony E mount)
good sized screen (3 inches)
has image stabilization (Sensor based 5-axis)
MP count amazing (42 megapixels)
sensor size is big (Full frame)
doesnt have low pass filter
great ISO range (32,000)
delivers RAW formats
environment sealing
good battery life (650 shots)
2 card slots
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Vlogging Comparison

Panasonic G3 as a Vlogging camera
Sony A7R III as a Vlogging camera
70
screen is selfie friendly
built-in touchscreen
has face detection focus
high quality video (1920 x 1080 resolution)
no image stabilization
doesn't have external mic support
37
touchscreen
has image stabilization (Sensor based 5-axis)
includes face detection focus
video res high (3840 x 2160 resolution)
has external mic support
does not have a selfie friendly display
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Panasonic G3 vs Sony A7R III Specifications

Detailed spec comparison table for Panasonic G3 and Sony A7R III
 Panasonic Lumix DMC-G3Sony Alpha A7R III
General Information
Brand Name Panasonic Sony
Model type Panasonic Lumix DMC-G3 Sony Alpha A7R III
Class Entry-Level Mirrorless Pro Mirrorless
Announced 2011-07-11 2017-10-25
Physical type SLR-style mirrorless SLR-style mirrorless
Sensor Information
Chip Venus Engine FHD Bionz X
Sensor type CMOS BSI-CMOS
Sensor size Four Thirds Full frame
Sensor dimensions 17.3 x 13mm 35.9 x 24mm
Sensor surface area 224.9mm² 861.6mm²
Sensor resolution 16 megapixel 42 megapixel
Anti alias filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2 and 16:9
Max resolution 4592 x 3448 7952 x 5304
Max native ISO 6400 32000
Max enhanced ISO - 102400
Min native ISO 160 100
RAW images
Min enhanced ISO - 50
Autofocusing
Manual focusing
Touch to focus
AF continuous
AF single
AF tracking
AF selectice
Center weighted AF
Multi area AF
Live view AF
Face detect focusing
Contract detect focusing
Phase detect focusing
Total focus points 23 425
Lens
Lens mount type Micro Four Thirds Sony E
Amount of lenses 107 121
Focal length multiplier 2.1 1
Screen
Type of display Fully Articulated Tilting
Display diagonal 3 inch 3 inch
Display resolution 460 thousand dots 1,440 thousand dots
Selfie friendly
Liveview
Touch function
Display technology TFT Color LCD with wide-viewing angle -
Viewfinder Information
Viewfinder type Electronic Electronic
Viewfinder resolution 1,440 thousand dots 3,686 thousand dots
Viewfinder coverage 100% 100%
Viewfinder magnification 0.7x 0.78x
Features
Minimum shutter speed 60 secs 30 secs
Fastest shutter speed 1/4000 secs 1/8000 secs
Continuous shutter rate 4.0 frames/s 10.0 frames/s
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Custom WB
Image stabilization
Integrated flash
Flash distance 11.00 m no built-in flash
Flash modes Auto, On, Off, Red-Eye, Slow Sync Off, Auto, Fill-flash, Slow Sync, Rear Sync, Red-eye reduction, Wireless, Hi-speed sync
External flash
AE bracketing
WB bracketing
Fastest flash synchronize 1/160 secs -
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Supported video resolutions 1920 x 1080 (60fps) 1280 x 720 (60, 30 fps), 640 x 480 (30fps), 320 x 240 (30fps)) 3840 x 2160 (30p, 25p, 24p), 1920 x 1080 (60p, 60i, 24p), 1440 x 1080 (30p), 640 x 480 (30p)
Max video resolution 1920x1080 3840x2160
Video file format AVCHD, Motion JPEG MPEG-4, AVCHD, XAVC S
Mic support
Headphone support
Connectivity
Wireless None Built-In
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 3.1 Gen 1(5 GBit/sec)
GPS None None
Physical
Environmental sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 336 gr (0.74 lbs) 657 gr (1.45 lbs)
Physical dimensions 115 x 84 x 47mm (4.5" x 3.3" x 1.9") 127 x 96 x 74mm (5.0" x 3.8" x 2.9")
DXO scores
DXO Overall rating 56 100
DXO Color Depth rating 21.0 26.0
DXO Dynamic range rating 10.6 14.7
DXO Low light rating 667 3523
Other
Battery life 270 pictures 650 pictures
Battery style Battery Pack Battery Pack
Battery ID - NP-FZ100
Self timer Yes (2 or 10 sec) Yes (2 or 10 sec; continuous (3 or 5 exposures))
Time lapse recording
Storage type SD/SDHC/SDXC Two SD/SDHC/SDXC slots (UHS-II support on one)
Card slots One Dual
Retail cost $500 $2,800