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Panasonic G3 vs Sony A7

Portability
83
Imaging
52
Features
62
Overall
56
Panasonic Lumix DMC-G3 front
 
Sony Alpha A7 front
Portability
78
Imaging
71
Features
80
Overall
74

Panasonic G3 vs Sony A7 Key Specs

Panasonic G3
(Full Review)
  • 16MP - Four Thirds Sensor
  • 3" Fully Articulated Screen
  • ISO 160 - 6400
  • 1920 x 1080 video
  • Micro Four Thirds Mount
  • 336g - 115 x 84 x 47mm
  • Announced July 2011
  • Superseded the Panasonic G2
  • Replacement is Panasonic G5
Sony A7
(Full Review)
  • 24MP - Full frame Sensor
  • 3" Tilting Screen
  • ISO 50 - 25600
  • 1/8000s Max Shutter
  • 1920 x 1080 video
  • Sony E Mount
  • 474g - 127 x 94 x 48mm
  • Introduced January 2014
  • Renewed by Sony A7 II
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Panasonic G3 vs Sony A7 Overview

Its time to take a more detailed look at the Panasonic G3 versus Sony A7, one being a Entry-Level Mirrorless and the latter is a Pro Mirrorless by manufacturers Panasonic and Sony. There exists a crucial gap between the image resolutions of the G3 (16MP) and A7 (24MP) and the G3 (Four Thirds) and A7 (Full frame) enjoy totally different sensor size.

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The G3 was introduced 3 years before the A7 and that is quite a serious gap as far as technology is concerned. Each of the cameras offer the identical body type (SLR-style mirrorless).

Before diving through a in-depth comparison, below is a short synopsis of how the G3 matches up against the A7 in the way of portability, imaging, features and an overall rating.

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Reasons to pick Panasonic G3 over the Sony A7

 G3 A7 
Screen typeFully ArticulatedTiltingFully Articulating screen
Selfie screen Easy selfies
Touch screen Quickly navigate

Reasons to pick Sony A7 over the Panasonic G3

 A7 G3 
IntroducedJanuary 2014July 2011Fresher by 30 months
Screen resolution1230k460kSharper screen (+770k dot)

Common features in the Panasonic G3 and Sony A7

 G3 A7 
Manually focus Very accurate focus
Screen sizing3"3"Equivalent screen size

Panasonic G3 vs Sony A7 Physical Comparison

When you are planning to carry your camera, you'll need to factor its weight and dimensions. The Panasonic G3 features exterior measurements of 115mm x 84mm x 47mm (4.5" x 3.3" x 1.9") accompanied by a weight of 336 grams (0.74 lbs) and the Sony A7 has dimensions of 127mm x 94mm x 48mm (5.0" x 3.7" x 1.9") and a weight of 474 grams (1.04 lbs).

Look at the Panasonic G3 versus Sony A7 in the all new Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into account, the weight of an Interchangeable Lens Camera will change based on the lens you choose at that moment. Here is the front view dimension comparison of the G3 versus the A7.

Panasonic G3 vs Sony A7 size comparison

Considering dimensions and weight, the portability grade of the G3 and A7 is 83 and 78 respectively.

Panasonic G3 vs Sony A7 top view buttons comparison

Panasonic G3 vs Sony A7 Sensor Comparison

Normally, it's hard to see the difference between sensor sizing merely by looking at technical specs. The photograph underneath may provide you a greater sense of the sensor measurements in the G3 and A7.

As you have seen, both of those cameras enjoy different megapixel count and different sensor sizing. The G3 using its tinier sensor will make achieving shallow depth of field more difficult and the Sony A7 will resolve greater detail using its extra 8 Megapixels. Higher resolution will also enable you to crop photographs far more aggressively. The older G3 is going to be behind with regard to sensor tech.

Panasonic G3 vs Sony A7 sensor size comparison

Panasonic G3 vs Sony A7 Screen and ViewFinder

Panasonic G3 vs Sony A7 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Panasonic G3 Portrait photography highlights
Sony A7 Portrait photography highlights
71
you can focus manually
good resolution (16MP)
sensor size is decent (Four Thirds)
supports face detection autofocus
delivers RAW formats
82
manual focus
megapixel count decent (24 megapixels)
sensor size is big (Full frame)
features face detection focusing
delivers RAW files
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Street Comparison

Panasonic G3 Street photography info
Sony A7 Street photography info
75
screen can move to multiple angles
sensor size is decent (Four Thirds)
delivers RAW formats
has touch focus
no image stabilization
79
screen tilts up and down
sensor size is big (Full frame)
delivers RAW files
environment sealing
lighter than average (474 grams)
very good high ISO (25,600)
lack of image stabilization
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Sports Comparison

Sports photography with Panasonic G3
Sports photography with Sony A7
47
good resolution (16 megapixels)
sensor size is decent (Four Thirds)
supports tracking autofocus
painfully slow continuous shooting (4.0 frames/s)
no image stabilization
low battery life (270 shots)
doesn't have phase detect autofocus
66
high shutter speed (1/8,000 seconds)
megapixel count decent (24MP)
sensor size is big (Full frame)
environment sealing
sensor has phase detect AF
max frames per second very slow (5.0 frames per second)
lack of image stabilization
not so great battery life (340 shots)
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Travel Comparison

Travel photography with Panasonic G3
Travel photography with Sony A7
70
has touch focus
good resolution (16MP)
has built in flash
selfie friendly screen
lack of Timelapse function
low battery life (270 CIPA)
69
lighter than average (474g)
environment sealing
megapixel count decent (24 megapixels)
not so great battery life (340 per charge)
does not contain selfie friendly screen
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Landscape Comparison

Panasonic G3 as a Landscape photography camera
Sony A7 as a Landscape photography camera
62
you can focus manually
switch lenses (Micro Four Thirds mount)
nice screen size (3 inch)
good resolution (16MP)
sensor size is decent (Four Thirds)
delivers RAW formats
no image stabilization
low battery life (270 CIPA)
lack of Timelapse function
76
manual focus
change lenses (Sony E mount)
decent sized screen (3 inch)
megapixel count decent (24 megapixels)
sensor size is big (Full frame)
very good high ISO (25,600)
delivers RAW files
environment sealing
lack of image stabilization
not so great battery life (340 CIPA)
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Vlogging Comparison

Panasonic G3 as a Vlogging camera
Sony A7 as a Vlogging camera
70
selfie friendly screen
screen is touchscreen
supports face detection autofocus
video res high (1920 x 1080 pixels)
no image stabilization
lack of external microphone support
36
features face detection focusing
video res high (1920 x 1080 pixels)
includes external mic port
lighter than average (474g)
does not contain selfie friendly screen
lack of image stabilization
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Panasonic G3 vs Sony A7 Specifications

Detailed spec comparison table for Panasonic G3 and Sony A7
 Panasonic Lumix DMC-G3Sony Alpha A7
General Information
Brand Name Panasonic Sony
Model Panasonic Lumix DMC-G3 Sony Alpha A7
Type Entry-Level Mirrorless Pro Mirrorless
Announced 2011-07-11 2014-01-22
Body design SLR-style mirrorless SLR-style mirrorless
Sensor Information
Powered by Venus Engine FHD Bionz X
Sensor type CMOS CMOS
Sensor size Four Thirds Full frame
Sensor dimensions 17.3 x 13mm 35.8 x 23.9mm
Sensor surface area 224.9mm² 855.6mm²
Sensor resolution 16 megapixels 24 megapixels
Anti aliasing filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2 and 16:9
Max resolution 4592 x 3448 6000 x 4000
Max native ISO 6400 25600
Lowest native ISO 160 50
RAW format
Autofocusing
Focus manually
AF touch
Continuous AF
AF single
AF tracking
AF selectice
Center weighted AF
AF multi area
Live view AF
Face detection AF
Contract detection AF
Phase detection AF
Number of focus points 23 117
Cross focus points - 25
Lens
Lens mount Micro Four Thirds Sony E
Number of lenses 107 121
Focal length multiplier 2.1 1
Screen
Range of screen Fully Articulated Tilting
Screen diagonal 3" 3"
Resolution of screen 460k dot 1,230k dot
Selfie friendly
Liveview
Touch screen
Screen technology TFT Color LCD with wide-viewing angle Xtra Fine LCD
Viewfinder Information
Viewfinder Electronic Electronic
Viewfinder resolution 1,440k dot 2,359k dot
Viewfinder coverage 100 percent 100 percent
Viewfinder magnification 0.7x 0.71x
Features
Minimum shutter speed 60s 30s
Fastest shutter speed 1/4000s 1/8000s
Continuous shutter speed 4.0fps 5.0fps
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Set WB
Image stabilization
Built-in flash
Flash range 11.00 m no built-in flash
Flash options Auto, On, Off, Red-Eye, Slow Sync no built-in flash
External flash
AE bracketing
White balance bracketing
Fastest flash sync 1/160s 1/250s
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Supported video resolutions 1920 x 1080 (60fps) 1280 x 720 (60, 30 fps), 640 x 480 (30fps), 320 x 240 (30fps)) 1920 x 1080 (60p, 60i, 24p), 1440 x 1080 (30p), 640 x 480 (30p)
Max video resolution 1920x1080 1920x1080
Video format AVCHD, Motion JPEG MPEG-4, AVCHD
Mic jack
Headphone jack
Connectivity
Wireless None 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 336 gr (0.74 lb) 474 gr (1.04 lb)
Dimensions 115 x 84 x 47mm (4.5" x 3.3" x 1.9") 127 x 94 x 48mm (5.0" x 3.7" x 1.9")
DXO scores
DXO Overall score 56 90
DXO Color Depth score 21.0 24.8
DXO Dynamic range score 10.6 14.2
DXO Low light score 667 2248
Other
Battery life 270 photographs 340 photographs
Battery form Battery Pack Battery Pack
Battery model - NP-FW50
Self timer Yes (2 or 10 sec) Yes (2 or 10 sec; continuous (3 or 5 exposures))
Time lapse recording With downloadable app
Storage media SD/SDHC/SDXC SD/SDHC/SDXC, Memory Stick Duo/Pro Duo/Pro-HG Duo
Storage slots One One
Launch cost $500 $798