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Panasonic G9 vs Pentax K-3

Portability
62
Imaging
60
Features
90
Overall
72
Panasonic Lumix DC-G9 front
 
Pentax K-3 front
Portability
59
Imaging
65
Features
85
Overall
73

Panasonic G9 vs Pentax K-3 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 Maximum Shutter
  • 3840 x 2160 video
  • Micro Four Thirds Mount
  • 658g - 137 x 97 x 92mm
  • Introduced November 2017
Pentax K-3
(Full Review)
  • 24MP - APS-C Sensor
  • 3.2" Fixed Screen
  • ISO 100 - 51200
  • Sensor based Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Maximum Shutter
  • 1920 x 1080 video
  • Pentax KAF2 Mount
  • 800g - 131 x 100 x 77mm
  • Released April 2014
  • Updated by Pentax K-3 II
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Panasonic G9 vs Pentax K-3 Overview

The following is a in depth overview of the Panasonic G9 versus Pentax K-3, former is a Pro Mirrorless while the latter is a Advanced DSLR by rivals Panasonic and Pentax. The resolution of the G9 (20MP) and the K-3 (24MP) is relatively comparable but the G9 (Four Thirds) and K-3 (APS-C) boast totally different sensor sizes.

Photography Glossary

The G9 was revealed 3 years after the K-3 which is a fairly big difference as far as camera tech is concerned. Both cameras feature different body design with the Panasonic G9 being a SLR-style mirrorless camera and the Pentax K-3 being a Mid-size SLR camera.

Before going right into a complete comparison, here is a concise introduction of how the G9 grades against the K-3 in the way of portability, imaging, features and an overall mark.

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Reasons to pick Panasonic G9 over the Pentax K-3

 G9 K-3 
ReleasedNovember 2017April 2014Newer by 44 months
Screen typeFully ArticulatedFixed Fully Articulating screen
Screen resolution1040k1037kCrisper screen (+3k dot)
Selfie screen Take selfies
Touch screen Quickly navigate

Reasons to pick Pentax K-3 over the Panasonic G9

 K-3 G9 
Screen size3.2"3"Bigger screen (+0.2")

Common features in the Panasonic G9 and Pentax K-3

 G9 K-3 
Manually focus Dial precise focus

Panasonic G9 vs Pentax K-3 Physical Comparison

If you're going to travel with your camera often, you are going to need to think about its weight and proportions. The Panasonic G9 offers outside measurements of 137mm x 97mm x 92mm (5.4" x 3.8" x 3.6") accompanied by a weight of 658 grams (1.45 lbs) and the Pentax K-3 has measurements of 131mm x 100mm x 77mm (5.2" x 3.9" x 3.0") and a weight of 800 grams (1.76 lbs).

Examine the Panasonic G9 versus Pentax K-3 in our completely new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Do not forget, the weight of an ILC will change dependant on the lens you are employing at that moment. Below is a front view overall size comparison of the G9 vs the K-3.

Panasonic G9 vs Pentax K-3 size comparison

Considering size and weight, the portability grade of the G9 and K-3 is 62 and 59 respectively.

Panasonic G9 vs Pentax K-3 top view buttons comparison

Panasonic G9 vs Pentax K-3 Sensor Comparison

Often, it can be hard to envision the difference in sensor dimensions only by checking out technical specs. The pic below will offer you a stronger sense of the sensor measurements in the G9 and K-3.

As you have seen, each of these cameras come with different megapixel count and different sensor dimensions. The G9 using its smaller sensor will make achieving shallower DOF harder and the Pentax K-3 will show more detail because of its extra 4MP. Higher resolution can also let you crop pictures a good deal more aggressively. The younger G9 will have an edge when it comes to sensor innovation.

Panasonic G9 vs Pentax K-3 sensor size comparison

Panasonic G9 vs Pentax K-3 Screen and ViewFinder

Panasonic G9 vs Pentax K-3 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Panasonic G9 Portrait photography details
Pentax K-3 Portrait photography details
76
focusing manually
good resolution (20MP)
decent sensor size (Four Thirds)
offers face detection autofocus
delivers RAW formats
79
you can focus manually
MP count good (24 megapixels)
good sensor size (APS-C)
comes with face detection focus
supports RAW formats
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Street Comparison

Panasonic G9 Street photography advice
Pentax K-3 Street photography advice
75
fully articulated screen
has image stabilization (Sensor based 5-axis)
decent sensor size (Four Thirds)
delivers RAW formats
features focus via touch
weather sealing
above average high ISO (25,600)
69
built in image stabilization (Sensor based)
good sensor size (APS-C)
supports RAW formats
weather proofing
good high ISO (51,200)
fixed screen
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Sports Comparison

Panasonic G9 Sports photography details
Pentax K-3 Sports photography details
70
great max shutter speed (1/8,000 seconds)
quiet shutter (1/32,000 seconds)
high frames per second (20.0 frames/s)
has image stabilization (Sensor based 5-axis)
good resolution (20 megapixels)
decent sensor size (Four Thirds)
offers tracking autofocus
weather sealing
terrible battery life (400 shots)
does not have phase detect autofocus
76
max shutter speed is good (1/8,000s)
built in image stabilization (Sensor based)
MP count good (24 megapixels)
good sensor size (APS-C)
comes with tracking autofocus
weather proofing
has phase detect auto focus
not so great battery pack (560 CIPA)
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Travel Comparison

Panasonic G9 as a Travel photography camera
Pentax K-3 as a Travel photography camera
70
weather sealing
has bluetooth
features focus via touch
good resolution (20 megapixels)
screen is selfie friendly
terrible battery life (400 CIPA)
60
weather proofing
MP count good (24 megapixels)
built-in flash
not so great battery pack (560 per charge)
does not feature selfie friendly display
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Landscape Comparison

Panasonic G9 Landscape photography factors
Pentax K-3 Landscape photography factors
76
focusing manually
interchangeable lenses (Micro Four Thirds mount)
nice screen size (3")
has image stabilization (Sensor based 5-axis)
good resolution (20MP)
decent sensor size (Four Thirds)
does not have low pass filter
above average high ISO (25,600)
delivers RAW formats
weather sealing
two card slots
terrible battery life (400 shots)
77
you can focus manually
interchangeable lenses (Pentax KAF2 mount)
screen is a good size (3.2 inch)
built in image stabilization (Sensor based)
MP count good (24 megapixels)
good sensor size (APS-C)
doesnt have anti aliasing filter
good high ISO (51,200)
supports RAW formats
weather proofing
has dual storage slots
not so great battery pack (560 per charge)
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Vlogging Comparison

Panasonic G9 Vlogging information
Pentax K-3 Vlogging information
76
screen is selfie friendly
has touchscreen
has image stabilization (Sensor based 5-axis)
offers face detection autofocus
high video quality (3840 x 2160 resolution)
comes with external mic socket
34
built in image stabilization (Sensor based)
comes with face detection focus
high res video (1920 x 1080 resolution)
has external mic jack
does not feature selfie friendly display
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Panasonic G9 vs Pentax K-3 Specifications

Detailed spec comparison table for Panasonic G9 and Pentax K-3
 Panasonic Lumix DC-G9Pentax K-3
General Information
Brand Panasonic Pentax
Model type Panasonic Lumix DC-G9 Pentax K-3
Class Pro Mirrorless Advanced DSLR
Introduced 2017-11-08 2014-04-10
Body design SLR-style mirrorless Mid-size SLR
Sensor Information
Chip - Prime III
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 megapixels 24 megapixels
Anti alias filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2
Peak resolution 5184 x 3888 6016 x 4000
Highest native ISO 25600 51200
Min native ISO 200 100
RAW support
Min enhanced ISO 100 -
Autofocusing
Manual focusing
Touch focus
Continuous AF
AF single
Tracking AF
AF selectice
AF center weighted
AF multi area
Live view AF
Face detect AF
Contract detect AF
Phase detect AF
Total focus points 225 27
Cross type focus points - 25
Lens
Lens mount type Micro Four Thirds Pentax KAF2
Amount of lenses 107 151
Crop factor 2.1 1.5
Screen
Range of display Fully Articulated Fixed Type
Display sizing 3 inch 3.2 inch
Resolution of display 1,040k dot 1,037k dot
Selfie friendly
Liveview
Touch friendly
Display technology - TFT LCD monitor
Viewfinder Information
Viewfinder Electronic Optical (pentaprism)
Viewfinder resolution 3,680k dot -
Viewfinder coverage 100 percent 100 percent
Viewfinder magnification 0.83x 0.64x
Features
Min shutter speed 60 secs 30 secs
Max shutter speed 1/8000 secs 1/8000 secs
Max quiet shutter speed 1/32000 secs -
Continuous shutter speed 20.0 frames/s 8.0 frames/s
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Custom WB
Image stabilization
Integrated flash
Flash distance no built-in flash 13.00 m (at ISO 100)
Flash modes Auto, Auto/Red-eye Reduction, Forced On, Forced On/Red-eye Reduction, Slow Sync., Slow Sync./Red-eye Reduction, Forced Off Auto, on, off, red-eye, slow sync, slow sync + red-eye, trailing curtain sync, high speed, wireless, manual
Hot shoe
AEB
White balance bracketing
Max flash sync - 1/180 secs
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Supported video resolutions 3840 x 2160 @ 60p / 150 Mbps, MP4, H.264, Linear PCM 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p, 30p, 25p, 24p)
Highest video resolution 3840x2160 1920x1080
Video file format MPEG-4, AVCHD, H.264 MPEG-4, H.264
Mic input
Headphone input
Connectivity
Wireless Built-In None
Bluetooth
NFC
HDMI
USB USB 3.0 (5 GBit/sec) USB 3.0 (5 GBit/sec)
GPS None Optional
Physical
Environment seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 658g (1.45 lb) 800g (1.76 lb)
Physical dimensions 137 x 97 x 92mm (5.4" x 3.8" x 3.6") 131 x 100 x 77mm (5.2" x 3.9" x 3.0")
DXO scores
DXO Overall rating not tested 80
DXO Color Depth rating not tested 23.7
DXO Dynamic range rating not tested 13.4
DXO Low light rating not tested 1216
Other
Battery life 400 pictures 560 pictures
Battery format Battery Pack Battery Pack
Battery ID DMW-BLF19 D-LI90
Self timer Yes Yes ( 2 or 12 seconds)
Time lapse recording
Storage media Dual SD/SDHC/SDXC slots (UHS-II supported) Dual SD/SDHC/SDXC
Storage slots Two Two
Pricing at release $1,500 $639