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Panasonic GX8 vs Pentax K-x

Portability
74
Imaging
59
Features
84
Overall
69
Panasonic Lumix DMC-GX8 front
 
Pentax K-x front
Portability
69
Imaging
52
Features
47
Overall
50

Panasonic GX8 vs Pentax K-x Key Specs

Panasonic GX8
(Full Review)
  • 20MP - Four Thirds Sensor
  • 3" Fully Articulated Screen
  • ISO 200 - 25600
  • Sensor based Image Stabilization
  • 1/8000s Max Shutter
  • 3840 x 2160 video
  • Micro Four Thirds Mount
  • 487g - 133 x 78 x 63mm
  • Released July 2015
  • Replaced the Panasonic GX7
Pentax K-x
(Full Review)
  • 12MP - APS-C Sensor
  • 2.7" Fixed Screen
  • ISO 100 - 6400 (Push to 12800)
  • Sensor based Image Stabilization
  • 1/6000s Maximum Shutter
  • 1280 x 720 video
  • Pentax KAF2 Mount
  • 580g - 123 x 92 x 68mm
  • Released December 2009
Photography Glossary

Panasonic GX8 vs Pentax K-x Overview

Following is a comprehensive assessment of the Panasonic GX8 and Pentax K-x, former is a Advanced Mirrorless while the latter is a Entry-Level DSLR by companies Panasonic and Pentax. There exists a sizable gap between the image resolutions of the GX8 (20MP) and K-x (12MP) and the GX8 (Four Thirds) and K-x (APS-C) have different sensor size.

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The GX8 was launched 5 years after the K-x which is quite a significant difference as far as technology is concerned. The two cameras feature different body design with the Panasonic GX8 being a Rangefinder-style mirrorless camera and the Pentax K-x being a Compact SLR camera.

Before getting straight to a thorough comparison, here is a quick overview of how the GX8 scores vs the K-x in terms of portability, imaging, features and an overall score.

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Reasons to pick Panasonic GX8 over the Pentax K-x

 GX8 K-x 
ReleasedJuly 2015December 2009More modern by 68 months
Screen typeFully ArticulatedFixed Fully Articulating screen
Screen size3"2.7"Bigger screen (+0.3")
Screen resolution1040k230kClearer screen (+810k dot)
Selfie screen Take selfies
Touch friendly screen Quickly navigate

Reasons to pick Pentax K-x over the Panasonic GX8

 K-x GX8 

Common features in the Panasonic GX8 and Pentax K-x

 GX8 K-x 
Focus manually Very accurate focusing

Panasonic GX8 vs Pentax K-x Physical Comparison

If you are aiming to carry around your camera often, you'll need to think about its weight and measurements. The Panasonic GX8 features outer measurements of 133mm x 78mm x 63mm (5.2" x 3.1" x 2.5") along with a weight of 487 grams (1.07 lbs) whilst the Pentax K-x has proportions of 123mm x 92mm x 68mm (4.8" x 3.6" x 2.7") accompanied by a weight of 580 grams (1.28 lbs).

Examine the Panasonic GX8 and Pentax K-x in our completely new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Remember, the weight of an ILC will change based on the lens you choose at that time. Below is a front view scale comparison of the GX8 versus the K-x.

Panasonic GX8 vs Pentax K-x size comparison

Taking into account dimensions and weight, the portability rating of the GX8 and K-x is 74 and 69 respectively.

Panasonic GX8 vs Pentax K-x top view buttons comparison

Panasonic GX8 vs Pentax K-x Sensor Comparison

More often than not, its tough to imagine the gap between sensor sizes just by reading through specs. The image underneath should provide you a stronger sense of the sensor measurements in the GX8 and K-x.

All in all, both of the cameras come with different megapixel count and different sensor sizes. The GX8 featuring a tinier sensor is going to make shooting shallow depth of field harder and the Panasonic GX8 will resolve extra detail utilizing its extra 8MP. Higher resolution will also enable you to crop photographs a good deal more aggressively. The newer GX8 provides an advantage with regard to sensor technology.

Panasonic GX8 vs Pentax K-x sensor size comparison

Panasonic GX8 vs Pentax K-x Screen and ViewFinder

Panasonic GX8 vs Pentax K-x Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Panasonic GX8 Portrait photography advice
Pentax K-x Portrait photography advice
75
manual focus
decent sensor resolution (20 megapixels)
decent sensor size (Four Thirds)
includes face detection focusing
delivers RAW formats
63
you can focus manually
nice sensor size (APS-C)
comes with face detect focus
delivers RAW formats
sensor resolution not great (12 megapixels)
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Street Comparison

Panasonic GX8 Street photography factors
Pentax K-x Street photography factors
80
fully articulated screen
built in image stabilization (Sensor based)
decent sensor size (Four Thirds)
delivers RAW formats
provides touch focus
weather proof
great high ISO (25,600)
67
has image stabilization (Sensor based)
nice sensor size (APS-C)
delivers RAW formats
screen does not articulate
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Sports Comparison

Panasonic GX8 as a Sports photography camera
Pentax K-x as a Sports photography camera
68
great max shutter speed (1/8,000s)
silent shutter (1/16,000s)
built in image stabilization (Sensor based)
decent sensor resolution (20 megapixels)
decent sensor size (Four Thirds)
includes tracking autofocus
weather proof
not so great battery life (330 CIPA)
lacks phase detect AF
61
max shutter speed is good (1/6,000s)
has image stabilization (Sensor based)
nice sensor size (APS-C)
better than average battery life (1,900 shots)
sensor has phase detect auto focus
very slow continuous shooting (5.0 frames/s)
sensor resolution not great (12MP)
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Travel Comparison

Travel photography with Panasonic GX8
Travel photography with Pentax K-x
73
weather proof
provides touch focus
decent sensor resolution (20 megapixels)
screen is selfie friendly
not so great battery life (330 shots)
54
better than average battery life (1,900 shots)
built-in flash
missing Time Lapse recording
sensor resolution not great (12MP)
does not contain selfie friendly screen
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Landscape Comparison

Landscape photography with Panasonic GX8
Landscape photography with Pentax K-x
76
manual focus
change lenses (Micro Four Thirds mount)
screen size is decent (3 inch)
built in image stabilization (Sensor based)
decent sensor resolution (20MP)
decent sensor size (Four Thirds)
great high ISO (25,600)
delivers RAW formats
weather proof
not so great battery life (330 CIPA)
61
you can focus manually
swap lenses (Pentax KAF2 mount)
has image stabilization (Sensor based)
nice sensor size (APS-C)
delivers RAW formats
better than average battery life (1,900 shots)
tiny screen (2.7 inch)
sensor resolution not great (12 megapixels)
missing Time Lapse recording
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Vlogging Comparison

Panasonic GX8 Vlogging features
Pentax K-x Vlogging features
81
screen is selfie friendly
touchscreen functionality
built in image stabilization (Sensor based)
includes face detection focusing
high quality video (3840 x 2160 pixels)
does have external microphone support
27
has image stabilization (Sensor based)
comes with face detect focus
does not contain selfie friendly screen
low video resolution (1280 x 720 resolution)
missing mic port
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Panasonic GX8 vs Pentax K-x Specifications

Detailed spec comparison table for Panasonic GX8 and Pentax K-x
 Panasonic Lumix DMC-GX8Pentax K-x
General Information
Company Panasonic Pentax
Model type Panasonic Lumix DMC-GX8 Pentax K-x
Type Advanced Mirrorless Entry-Level DSLR
Released 2015-07-16 2009-12-23
Body design Rangefinder-style mirrorless Compact SLR
Sensor Information
Processor Venus Engine Prime
Sensor type CMOS CMOS
Sensor size Four Thirds APS-C
Sensor dimensions 17.3 x 13mm 23.6 x 15.8mm
Sensor surface area 224.9mm² 372.9mm²
Sensor resolution 20 megapixel 12 megapixel
Anti alias filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2
Peak resolution 5184 x 3888 4288 x 2848
Highest native ISO 25600 6400
Highest enhanced ISO - 12800
Lowest native ISO 200 100
RAW support
Lowest enhanced ISO 100 -
Autofocusing
Manual focusing
Touch focus
AF continuous
Single AF
Tracking AF
AF selectice
AF center weighted
Multi area AF
Live view AF
Face detection AF
Contract detection AF
Phase detection AF
Total focus points 49 11
Lens
Lens support Micro Four Thirds Pentax KAF2
Available lenses 107 151
Crop factor 2.1 1.5
Screen
Range of screen Fully Articulated Fixed Type
Screen sizing 3 inches 2.7 inches
Screen resolution 1,040 thousand dot 230 thousand dot
Selfie friendly
Liveview
Touch friendly
Screen technology - TFT LCD monitor
Viewfinder Information
Viewfinder Electronic Optical (pentamirror)
Viewfinder resolution 2,360 thousand dot -
Viewfinder coverage 100% 96%
Viewfinder magnification 0.77x 0.57x
Features
Minimum shutter speed 60 secs 30 secs
Fastest shutter speed 1/8000 secs 1/6000 secs
Fastest silent shutter speed 1/16000 secs -
Continuous shutter speed 12.0 frames per sec 5.0 frames per sec
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Change WB
Image stabilization
Built-in flash
Flash distance no built-in flash 16.00 m
Flash settings Auto, auto w/redeye reduction, forced on, forced on w/redeye reduction, slow sync, slow sync w/redeye reduction, forced off Auto, On, Off, Red-Eye, Slow Sync, Rear curtain, Wireless
External flash
Auto exposure bracketing
WB bracketing
Fastest flash sync - 1/180 secs
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Supported video resolutions 3840 x 2160 (30p, 24p), 1920 x 1080 (60p, 30p), 1280 x 720 (60p, 30p), 1280 x 720 (30p), 640 x 480 (30p) 1280 x 720 (24 fps), 640 x 416 (24 fps)
Highest video resolution 3840x2160 1280x720
Video data format MPEG-4, AVCHD Motion JPEG
Mic jack
Headphone jack
Connectivity
Wireless Built-In None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environment seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 487 grams (1.07 lb) 580 grams (1.28 lb)
Physical dimensions 133 x 78 x 63mm (5.2" x 3.1" x 2.5") 123 x 92 x 68mm (4.8" x 3.6" x 2.7")
DXO scores
DXO Overall rating 75 72
DXO Color Depth rating 23.5 22.8
DXO Dynamic range rating 12.6 12.5
DXO Low light rating 806 811
Other
Battery life 330 photographs 1900 photographs
Battery form Battery Pack Battery Pack
Battery ID - 4 x AA
Self timer Yes Yes (2 or 12 sec)
Time lapse recording
Storage media SD/SDHC/SDXC card SD/SDHC card
Storage slots One One
Price at release $898 $600