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Panasonic LX100 vs Pentax K-x

Portability
83
Imaging
51
Features
73
Overall
59
Panasonic Lumix DMC-LX100 front
 
Pentax K-x front
Portability
69
Imaging
52
Features
47
Overall
50

Panasonic LX100 vs Pentax K-x Key Specs

Panasonic LX100
(Full Review)
  • 13MP - Four Thirds Sensor
  • 3" Fixed Screen
  • ISO 200 - 25600
  • Optical Image Stabilization
  • 3840 x 2160 video
  • 24-75mm (F1.7-2.8) lens
  • 393g - 115 x 66 x 55mm
  • Introduced September 2014
  • Refreshed by Panasonic LX100 II
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
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Panasonic LX100 vs Pentax K-x Overview

Its time to take a deeper look at the Panasonic LX100 and Pentax K-x, former is a Large Sensor Compact while the latter is a Entry-Level DSLR by manufacturers Panasonic and Pentax. The resolution of the LX100 (13MP) and the K-x (12MP) is relatively close but the LX100 (Four Thirds) and K-x (APS-C) have different sensor dimensions.

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The LX100 was announced 4 years after the K-x which is a fairly large difference as far as camera technology is concerned. Each of these cameras have different body design with the Panasonic LX100 being a Large Sensor Compact camera and the Pentax K-x being a Compact SLR camera.

Before diving right into a full comparison, here is a simple view of how the LX100 grades vs the K-x when it comes to portability, imaging, features and an overall mark.

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Reasons to pick Panasonic LX100 over the Pentax K-x

 LX100 K-x 
ReleasedSeptember 2014December 2009Newer by 58 months
Screen dimensions3"2.7"Bigger screen (+0.3")
Screen resolution921k230kSharper screen (+691k dot)

Reasons to pick Pentax K-x over the Panasonic LX100

 K-x LX100 

Common features in the Panasonic LX100 and Pentax K-x

 LX100 K-x 
Manual focus More precise focus
Screen typeFixed Fixed Fixed screen
Selfie screen Missing selfie screen
Touch screen Neither provides Touch screen

Panasonic LX100 vs Pentax K-x Physical Comparison

For those who are looking to travel with your camera regularly, you have to factor in its weight and size. The Panasonic LX100 provides physical dimensions of 115mm x 66mm x 55mm (4.5" x 2.6" x 2.2") along with a weight of 393 grams (0.87 lbs) and the Pentax K-x has specifications of 123mm x 92mm x 68mm (4.8" x 3.6" x 2.7") accompanied by a weight of 580 grams (1.28 lbs).

Take a look at the Panasonic LX100 and Pentax K-x in our brand new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Remember, the weight of an ILC will change depending on the lens you have chosen at that moment. Following is a front view size comparison of the LX100 versus the K-x.

Panasonic LX100 vs Pentax K-x size comparison

Looking at dimensions and weight, the portability score of the LX100 and K-x is 83 and 69 respectively.

Panasonic LX100 vs Pentax K-x top view buttons comparison

Panasonic LX100 vs Pentax K-x Sensor Comparison

Normally, its difficult to picture the gap in sensor dimensions purely by looking through specifications. The picture here might provide you a more clear sense of the sensor sizes in the LX100 and K-x.

Plainly, both of these cameras have different megapixels and different sensor dimensions. The LX100 having a smaller sensor is going to make getting shallow DOF more challenging and the Panasonic LX100 will render more detail with its extra 1 Megapixels. Higher resolution can also make it easier to crop photographs a bit more aggressively. The younger LX100 provides an advantage in sensor technology.

Panasonic LX100 vs Pentax K-x sensor size comparison

Panasonic LX100 vs Pentax K-x Screen and ViewFinder

Panasonic LX100 vs Pentax K-x Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Panasonic LX100 Portrait photography info
Pentax K-x Portrait photography info
70
has manual focus
megapixel count decent (13 megapixels)
sensor size is good (Four Thirds)
features face detect focus
exports RAW formats
63
manual focus
sensor size is decent (APS-C)
includes face detect autofocus
saves RAW formats
sensor resolution not great (12MP)
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Street Comparison

Panasonic LX100 Street photography features
Pentax K-x Street photography features
76
has image stabilization (Optical)
sensor size is good (Four Thirds)
exports RAW formats
offers focus by touch
above average ISO range (25,600)
screen is fixed
67
image stabilization (Sensor based)
sensor size is decent (APS-C)
saves RAW formats
no moving screen
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Sports Comparison

Panasonic LX100 as a Sports photography camera
Pentax K-x as a Sports photography camera
67
silent shooting (1/16,000 seconds)
has image stabilization (Optical)
megapixel count decent (13MP)
sensor size is good (Four Thirds)
features tracking focus
lacks phase detect auto focus
61
max shutter speed is good (1/6,000 seconds)
image stabilization (Sensor based)
sensor size is decent (APS-C)
better than average battery (1,900 per charge)
comes with phase detect autofocus
slow continuous shooting (5.0 frames per second)
sensor resolution not great (12MP)
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Travel Comparison

Travel photography with Panasonic LX100
Travel photography with Pentax K-x
75
offers focus by touch
megapixel count decent (13 megapixels)
pretty wide (24mm)
fast max aperture (f1.7)
doesn't posses selfie friendly screen
54
better than average battery (1,900 CIPA)
flash built-in
missing Timelapse mode
sensor resolution not great (12 megapixels)
screen is not selfie friendly
Photography Glossary

Landscape Comparison

Landscape photography with Panasonic LX100
Landscape photography with Pentax K-x
73
has manual focus
pretty wide (24mm)
fast max aperture (f1.7)
pretty good screen size (3")
has image stabilization (Optical)
megapixel count decent (13 megapixels)
sensor size is good (Four Thirds)
above average ISO range (25,600)
exports RAW formats
fixed lens (fixed lens mount)
61
manual focus
swap lenses (Pentax KAF2 mount)
image stabilization (Sensor based)
sensor size is decent (APS-C)
saves RAW formats
better than average battery (1,900 shots)
tiny screen (2.7 inches)
sensor resolution not great (12 megapixels)
missing Timelapse mode
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Vlogging Comparison

Panasonic LX100 Vlogging info
Pentax K-x Vlogging info
35
pretty wide (24mm)
fast max aperture (f1.7)
has image stabilization (Optical)
features face detect focus
video res high (3840 x 2160 resolution)
doesn't posses selfie friendly screen
missing mic socket
27
image stabilization (Sensor based)
includes face detect autofocus
screen is not selfie friendly
low res video (1280 x 720 resolution)
missing microphone jack
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Panasonic LX100 vs Pentax K-x Specifications

Detailed spec comparison table for Panasonic LX100 and Pentax K-x
 Panasonic Lumix DMC-LX100Pentax K-x
General Information
Brand Name Panasonic Pentax
Model type Panasonic Lumix DMC-LX100 Pentax K-x
Class Large Sensor Compact Entry-Level DSLR
Introduced 2014-09-15 2009-12-23
Body design Large Sensor Compact Compact SLR
Sensor Information
Processor Chip Venus Engine 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 13 megapixels 12 megapixels
Anti alias filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2
Full resolution 4112 x 3088 4288 x 2848
Max native ISO 25600 6400
Max boosted ISO - 12800
Minimum native ISO 200 100
RAW format
Minimum boosted ISO 100 -
Autofocusing
Focus manually
Touch to focus
Continuous autofocus
Autofocus single
Autofocus tracking
Autofocus selectice
Center weighted autofocus
Autofocus multi area
Live view autofocus
Face detection autofocus
Contract detection autofocus
Phase detection autofocus
Total focus points 49 11
Lens
Lens mount type fixed lens Pentax KAF2
Lens zoom range 24-75mm (3.1x) -
Highest aperture f/1.7-2.8 -
Macro focusing range 3cm -
Total lenses - 151
Focal length multiplier 2.1 1.5
Screen
Screen type Fixed Type Fixed Type
Screen size 3 inches 2.7 inches
Resolution of screen 921 thousand dot 230 thousand dot
Selfie friendly
Liveview
Touch functionality
Screen tech - TFT LCD monitor
Viewfinder Information
Viewfinder type Electronic Optical (pentamirror)
Viewfinder resolution 2,764 thousand dot -
Viewfinder coverage 100% 96%
Viewfinder magnification 0.7x 0.57x
Features
Slowest shutter speed 60 seconds 30 seconds
Maximum shutter speed 1/4000 seconds 1/6000 seconds
Maximum silent shutter speed 1/16000 seconds -
Continuous shooting speed 11.0 frames per second 5.0 frames per second
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Custom white balance
Image stabilization
Inbuilt flash
Flash distance 7.00 m (with included external flash at ISO 100) 16.00 m
Flash modes Auto, auto w/redeye reduction, on, on w/redeye reduction, slow sync, slow sync w/redeye reduction, off Auto, On, Off, Red-Eye, Slow Sync, Rear curtain, Wireless
External flash
Auto exposure bracketing
WB bracketing
Maximum flash sync - 1/180 seconds
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Video resolutions 3840 x 2160 (30p, 24p), 1920 x 1080 (60p, 60i, 30p, 24p), 1280 x 720 (30p), 640 x 480 1280 x 720 (24 fps), 640 x 416 (24 fps)
Max video resolution 3840x2160 1280x720
Video file format MPEG-4, AVCHD Motion JPEG
Microphone input
Headphone input
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
Environmental seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 393 grams (0.87 lbs) 580 grams (1.28 lbs)
Physical dimensions 115 x 66 x 55mm (4.5" x 2.6" x 2.2") 123 x 92 x 68mm (4.8" x 3.6" x 2.7")
DXO scores
DXO All around rating 67 72
DXO Color Depth rating 22.3 22.8
DXO Dynamic range rating 12.5 12.5
DXO Low light rating 553 811
Other
Battery life 300 photographs 1900 photographs
Style of battery Battery Pack Battery Pack
Battery ID - 4 x AA
Self timer Yes (2 or 10 sec) Yes (2 or 12 sec)
Time lapse feature
Type of storage SD/SDHC/SDXC (UHS-I) SD/SDHC card
Storage slots 1 1
Launch cost $800 $600