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Panasonic G100 vs Pentax K-x

Portability
81
Imaging
62
Features
76
Overall
67
Panasonic Lumix DC-G100 front
 
Pentax K-x front
Portability
69
Imaging
52
Features
47
Overall
50

Panasonic G100 vs Pentax K-x Key Specs

Panasonic G100
(Full Review)
  • 20MP - Four Thirds Sensor
  • 3" Fully Articulated Screen
  • ISO 200 - 25600
  • 3840 x 1920 video
  • Micro Four Thirds Mount
  • 352g - 116 x 83 x 54mm
  • Announced June 2020
Pentax K-x
(Full Review)
  • 12MP - APS-C Sensor
  • 2.7" Fixed Display
  • 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
  • Announced December 2009
Photography Glossary

Panasonic G100 vs Pentax K-x Overview

Let's take a deeper look at the Panasonic G100 vs Pentax K-x, former is a Entry-Level Mirrorless while the other is a Entry-Level DSLR by manufacturers Panasonic and Pentax. There is a considerable difference among the image resolutions of the G100 (20MP) and K-x (12MP) and the G100 (Four Thirds) and K-x (APS-C) have different sensor size.

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The G100 was announced 10 years after the K-x which is a fairly large difference as far as camera tech is concerned. Each of the cameras feature different body design with the Panasonic G100 being a SLR-style mirrorless camera and the Pentax K-x being a Compact SLR camera.

Before delving straight to a complete comparison, here is a simple summary of how the G100 grades versus the K-x with regards to portability, imaging, features and an overall score.

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Reasons to pick Panasonic G100 over the Pentax K-x

 G100 K-x 
AnnouncedJune 2020December 2009More modern by 128 months
Display typeFully ArticulatedFixed Fully Articulating display
Display size3"2.7"Larger display (+0.3")
Display resolution1840k230kSharper display (+1610k dot)
Selfie screen Take selfies
Touch friendly display Easily navigate

Reasons to pick Pentax K-x over the Panasonic G100

 K-x G100 

Common features in the Panasonic G100 and Pentax K-x

 G100 K-x 
Focus manually More exact focus

Panasonic G100 vs Pentax K-x Physical Comparison

When you are going to carry around your camera frequently, you will want to consider its weight and measurements. The Panasonic G100 comes with outer dimensions of 116mm x 83mm x 54mm (4.6" x 3.3" x 2.1") and a weight of 352 grams (0.78 lbs) and the Pentax K-x has proportions of 123mm x 92mm x 68mm (4.8" x 3.6" x 2.7") and a weight of 580 grams (1.28 lbs).

Contrast the Panasonic G100 vs Pentax K-x in our newest Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Do not forget, the weight of an ILC will vary dependant on the lens you have during that time. Underneath is a front view overall size comparison of the G100 compared to the K-x.

Panasonic G100 vs Pentax K-x size comparison

Considering size and weight, the portability grade of the G100 and K-x is 81 and 69 respectively.

Panasonic G100 vs Pentax K-x top view buttons comparison

Panasonic G100 vs Pentax K-x Sensor Comparison

Often, its difficult to picture the difference in sensor sizes purely by seeing specs. The picture underneath will help provide you a more clear sense of the sensor dimensions in the G100 and K-x.

As you can plainly see, both cameras come with different megapixel count and different sensor sizes. The G100 having a smaller sensor is going to make achieving shallow depth of field more challenging and the Panasonic G100 will show more detail with its extra 8MP. Greater resolution will help you crop pics a good deal more aggressively. The fresher G100 provides a benefit with regard to sensor innovation.

Panasonic G100 vs Pentax K-x sensor size comparison

Panasonic G100 vs Pentax K-x Screen and ViewFinder

Panasonic G100 vs Pentax K-x Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Panasonic G100 Portrait photography advice
Pentax K-x Portrait photography advice
77
focusing manually
MP count good (20 megapixels)
nice sensor size (Four Thirds)
features face detect autofocus
exports RAW files
63
manual focus
sensor size is good (APS-C)
has face detection autofocus
exports RAW formats
MP count low (12 megapixels)
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Street Comparison

Panasonic G100 as a Street photography camera
Pentax K-x as a Street photography camera
78
screen articulates
nice sensor size (Four Thirds)
exports RAW files
includes touch to focus
very good high ISO (25,600)
no image stabilization
67
image stabilization (Sensor based)
sensor size is good (APS-C)
exports RAW formats
no articulating screen
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Sports Comparison

Sports photography with Panasonic G100
Sports photography with Pentax K-x
56
quiet shutter (1/16,000 seconds)
MP count good (20 megapixels)
nice sensor size (Four Thirds)
features tracking focus
low maximum shutter speed (1/500 seconds)
no image stabilization
not so great battery power (270 shots)
lack of phase detect autofocus
61
max shutter speed is good (1/6,000s)
image stabilization (Sensor based)
sensor size is good (APS-C)
great battery power (1,900 CIPA)
sensor has phase detect autofocus
slow frames per second (5.0 frames/s)
MP count low (12 megapixels)
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Travel Comparison

Panasonic G100 Travel photography advice
Pentax K-x Travel photography advice
78
connects via bluetooth
includes touch to focus
MP count good (20 megapixels)
has built in flash
selfie friendly display
not so great battery power (270 per charge)
54
great battery power (1,900 per charge)
has built in flash
no Timelapse recording
MP count low (12 megapixels)
doesn't posses selfie friendly screen
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Landscape Comparison

Panasonic G100 as a Landscape photography camera
Pentax K-x as a Landscape photography camera
71
focusing manually
interchangeable lenses (Micro Four Thirds mount)
screen is a good size (3")
MP count good (20 megapixels)
nice sensor size (Four Thirds)
very good high ISO (25,600)
exports RAW files
no image stabilization
not so great battery power (270 per charge)
61
manual focus
change lenses (Pentax KAF2 mount)
image stabilization (Sensor based)
sensor size is good (APS-C)
exports RAW formats
great battery power (1,900 CIPA)
small screen (2.7")
MP count low (12 megapixels)
no Timelapse recording
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Vlogging Comparison

Panasonic G100 Vlogging info
Pentax K-x Vlogging info
78
selfie friendly display
touchscreen
features face detect autofocus
high quality video (3840 x 1920 pixels)
has microphone port
no image stabilization
27
image stabilization (Sensor based)
has face detection autofocus
doesn't posses selfie friendly screen
low quality video (1280 x 720 pxls)
no external microphone support
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Panasonic G100 vs Pentax K-x Specifications

Detailed spec comparison table for Panasonic G100 and Pentax K-x
 Panasonic Lumix DC-G100Pentax K-x
General Information
Company Panasonic Pentax
Model type Panasonic Lumix DC-G100 Pentax K-x
Type Entry-Level Mirrorless Entry-Level DSLR
Announced 2020-06-24 2009-12-23
Physical type SLR-style mirrorless Compact SLR
Sensor Information
Chip - Prime
Sensor type CMOS CMOS
Sensor size Four Thirds APS-C
Sensor measurements 17.3 x 13mm 23.6 x 15.8mm
Sensor surface area 224.9mm² 372.9mm²
Sensor resolution 20MP 12MP
Anti alias filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2
Full resolution 5184 x 3888 4288 x 2848
Max native ISO 25600 6400
Max boosted ISO - 12800
Min native ISO 200 100
RAW files
Min boosted ISO 100 -
Autofocusing
Focus manually
Touch to focus
Continuous autofocus
Autofocus single
Autofocus tracking
Autofocus selectice
Autofocus center weighted
Autofocus multi area
Live view autofocus
Face detection autofocus
Contract detection autofocus
Phase detection autofocus
Total focus points 49 11
Lens
Lens support Micro Four Thirds Pentax KAF2
Amount of lenses 107 151
Crop factor 2.1 1.5
Screen
Screen type Fully Articulated Fixed Type
Screen size 3" 2.7"
Screen resolution 1,840k dots 230k dots
Selfie friendly
Liveview
Touch functionality
Screen tech - TFT LCD monitor
Viewfinder Information
Viewfinder type Electronic Optical (pentamirror)
Viewfinder resolution 3,680k dots -
Viewfinder coverage 100 percent 96 percent
Viewfinder magnification 0.73x 0.57x
Features
Lowest shutter speed 60s 30s
Highest shutter speed 1/500s 1/6000s
Highest silent shutter speed 1/16000s -
Continuous shooting rate 10.0 frames/s 5.0 frames/s
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Custom white balance
Image stabilization
Integrated flash
Flash distance 3.60 m (at ISO 100) 16.00 m
Flash settings Auto, auto w/redeye reduction, on, on w/redeye redduction, slow sync, slow sync w/redeye reduction, off Auto, On, Off, Red-Eye, Slow Sync, Rear curtain, Wireless
External flash
AEB
WB bracketing
Highest flash synchronize - 1/180s
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Video resolutions 3840 x 1920 @ 30p / 100 Mbps, MOV, H.264, AAC3840 x 1920 @ 25p / 100 Mbps, MOV, H.264, AAC3840 x 1920 @ 24p / 100 Mbps, MOV, H.264, AAC1920 x 1080 @ 120p / 28 Mbps, MOV, H.264, AAC1920 x 1080 @ 60p / 28 Mbps, MOV, H.264, AAC1920 x 1080 @ 50p / 28 Mbps, MOV, H.264, AAC1920 x 1080 @ 30p / 28 Mbps, MOV, H.264, AAC1920 x 1080 @ 25p / 28 Mbps, MOV, H.264, AAC1920 x 1080 @ 24p / 28 Mbps, MOV, H.264, AAC 1280 x 720 (24 fps), 640 x 416 (24 fps)
Max video resolution 3840x1920 1280x720
Video data format MPEG-4, H.264 Motion JPEG
Microphone support
Headphone support
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 sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 352 gr (0.78 pounds) 580 gr (1.28 pounds)
Physical dimensions 116 x 83 x 54mm (4.6" x 3.3" x 2.1") 123 x 92 x 68mm (4.8" x 3.6" x 2.7")
DXO scores
DXO All around rating not tested 72
DXO Color Depth rating not tested 22.8
DXO Dynamic range rating not tested 12.5
DXO Low light rating not tested 811
Other
Battery life 270 images 1900 images
Battery style Battery Pack Battery Pack
Battery ID - 4 x AA
Self timer Yes Yes (2 or 12 sec)
Time lapse feature
Type of storage SD/SDHC/SDXC card (UHS-I supported) SD/SDHC card
Card slots 1 1
Launch pricing $698 $600