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Pentax K-x vs Sony RX100 VI

Portability
69
Imaging
52
Features
47
Overall
50
Pentax K-x front
 
Sony Cyber-shot DSC-RX100 VI front
Portability
88
Imaging
54
Features
75
Overall
62

Pentax K-x vs Sony RX100 VI Key Specs

Pentax K-x
(Full Review)
  • 12MP - APS-C Sensor
  • 2.7" Fixed Display
  • ISO 100 - 6400 (Boost to 12800)
  • Sensor based Image Stabilization
  • 1/6000s Maximum Shutter
  • 1280 x 720 video
  • Pentax KAF2 Mount
  • 580g - 123 x 92 x 68mm
  • Revealed December 2009
Sony RX100 VI
(Full Review)
  • 20MP - 1" Sensor
  • 3" Tilting Screen
  • ISO 125 - 12800 (Push to 25600)
  • Optical Image Stabilization
  • 3840 x 2160 video
  • 24-200mm (F2.8-4.5) lens
  • 301g - 102 x 58 x 43mm
  • Revealed June 2018
  • Succeeded the Sony RX100 V
  • Updated by Sony RX100 VII
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Pentax K-x vs Sony RX100 VI Overview

Let's look a bit more in depth at the Pentax K-x vs Sony RX100 VI, one is a Entry-Level DSLR and the latter is a Large Sensor Compact by companies Pentax and Sony. There is a sizeable difference among the sensor resolutions of the K-x (12MP) and RX100 VI (20MP) and the K-x (APS-C) and RX100 VI (1") boast totally different sensor sizing.

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The K-x was manufactured 9 years prior to the RX100 VI which is a fairly large gap as far as camera tech is concerned. Each of these cameras have different body design with the Pentax K-x being a Compact SLR camera and the Sony RX100 VI being a Large Sensor Compact camera.

Before we go into a thorough comparison, here is a short synopsis of how the K-x grades versus the RX100 VI with regard to portability, imaging, features and an overall score.

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Reasons to pick Pentax K-x over the Sony RX100 VI

 K-x RX100 VI 

Reasons to pick Sony RX100 VI over the Pentax K-x

 RX100 VI K-x 
RevealedJune 2018December 2009More modern by 102 months
Screen typeTiltingFixed Tilting screen
Screen dimensions3"2.7"Bigger screen (+0.3")
Screen resolution1229k230kCrisper screen (+999k dot)
Selfie screen Take selfies
Touch friendly screen Quickly navigate

Common features in the Pentax K-x and Sony RX100 VI

 K-x RX100 VI 
Manual focus Very exact focusing

Pentax K-x vs Sony RX100 VI Physical Comparison

In case you're aiming to carry around your camera frequently, you should consider its weight and proportions. The Pentax K-x has outside dimensions of 123mm x 92mm x 68mm (4.8" x 3.6" x 2.7") and a weight of 580 grams (1.28 lbs) and the Sony RX100 VI has measurements of 102mm x 58mm x 43mm (4.0" x 2.3" x 1.7") along with a weight of 301 grams (0.66 lbs).

Contrast the Pentax K-x vs Sony RX100 VI in the all new Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into consideration, the weight of an Interchangeable Lens Camera will change based on the lens you have attached at the time. The following is a front view dimensions comparison of the K-x and the RX100 VI.

Pentax K-x vs Sony RX100 VI size comparison

Taking into consideration size and weight, the portability rating of the K-x and RX100 VI is 69 and 88 respectively.

Pentax K-x vs Sony RX100 VI top view buttons comparison

Pentax K-x vs Sony RX100 VI Sensor Comparison

Often, it's tough to visualise the contrast in sensor sizes simply by seeing a spec sheet. The pic here will offer you a greater sense of the sensor sizes in the K-x and RX100 VI.

As you can see, each of the cameras have different resolutions and different sensor sizes. The K-x featuring a bigger sensor will make shooting bokeh simpler and the Sony RX100 VI will provide more detail due to its extra 8 Megapixels. Higher resolution will help you crop pictures a bit more aggressively. The more aged K-x will be behind when it comes to sensor technology.

Pentax K-x vs Sony RX100 VI sensor size comparison

Pentax K-x vs Sony RX100 VI Screen and ViewFinder

Pentax K-x vs Sony RX100 VI Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax K-x Portrait photography information
Sony RX100 VI Portrait photography information
63
manual focus
sensor size is good (APS-C)
features face detection focusing
saves RAW formats
sensor resolution low (12MP)
66
focusing manually
great flash sync speed (1/2,000s)
good resolution (20 megapixels)
nice sensor size (1")
provides face detect focus
supports RAW formats
external flash not possible
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Street Comparison

Pentax K-x Street photography details
Sony RX100 VI Street photography details
67
built in image stabilization (Sensor based)
sensor size is good (APS-C)
saves RAW formats
fixed screen
85
screen tilts up and down
built in image stabilization (Optical)
nice sensor size (1")
supports RAW formats
provides touch to focus
lighter than competition in class (301 grams)
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Sports Comparison

Sports photography with Pentax K-x
Sports photography with Sony RX100 VI
61
max shutter speed is good (1/6,000 seconds)
built in image stabilization (Sensor based)
sensor size is good (APS-C)
better than average battery (1,900 per charge)
comes with phase detect AF
painfully slow continuous shooting (5.0 frames/s)
sensor resolution low (12 megapixels)
70
quiet mode (1/32,000 seconds)
high fps (24.0 frames/s)
built in image stabilization (Optical)
good resolution (20 megapixels)
nice sensor size (1")
provides tracking focus
comes with phase detect auto focus
low battery pack (240 shots)
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Travel Comparison

Pentax K-x Travel photography factors
Sony RX100 VI Travel photography factors
54
better than average battery (1,900 CIPA)
flash built-in
missing Time Lapse function
sensor resolution low (12 megapixels)
doesn't have selfie friendly screen
77
lighter than competition in class (301 grams)
has bluetooth
provides touch to focus
good resolution (20 megapixels)
has built in flash
screen is selfie friendly
relatively wide (24mm)
low battery pack (240 CIPA)
sluggish maximum aperture (f2.8)
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Landscape Comparison

Pentax K-x as a Landscape photography camera
Sony RX100 VI as a Landscape photography camera
61
manual focus
swap lenses (Pentax KAF2 mount)
built in image stabilization (Sensor based)
sensor size is good (APS-C)
saves RAW formats
better than average battery (1,900 CIPA)
tiny screen (2.7")
sensor resolution low (12 megapixels)
missing Time Lapse function
65
focusing manually
relatively wide (24mm)
nice screen size (3")
built in image stabilization (Optical)
good resolution (20MP)
nice sensor size (1")
supports RAW formats
lens is fixed (fixed lens mount)
sluggish maximum aperture (f2.8)
low battery pack (240 shots)
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Vlogging Comparison

Pentax K-x Vlogging details
Sony RX100 VI Vlogging details
27
built in image stabilization (Sensor based)
features face detection focusing
doesn't have selfie friendly screen
low video resolution (1280 x 720 pxls)
missing external mic port
77
relatively wide (24mm)
screen is selfie friendly
touchscreen enabled
built in image stabilization (Optical)
provides face detect focus
video res high (3840 x 2160 resolution)
lighter than competition in class (301 grams)
sluggish maximum aperture (f2.8)
missing mic support
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Pentax K-x vs Sony RX100 VI Specifications

Detailed spec comparison table for Pentax K-x and Sony RX100 VI
 Pentax K-xSony Cyber-shot DSC-RX100 VI
General Information
Manufacturer Pentax Sony
Model type Pentax K-x Sony Cyber-shot DSC-RX100 VI
Category Entry-Level DSLR Large Sensor Compact
Revealed 2009-12-23 2018-06-05
Physical type Compact SLR Large Sensor Compact
Sensor Information
Processor Prime Bionz X
Sensor type CMOS BSI-CMOS
Sensor size APS-C 1"
Sensor dimensions 23.6 x 15.8mm 13.2 x 8.8mm
Sensor area 372.9mm² 116.2mm²
Sensor resolution 12 megapixel 20 megapixel
Anti alias filter
Aspect ratio 3:2 1:1, 4:3, 3:2 and 16:9
Max resolution 4288 x 2848 5472 x 3648
Max native ISO 6400 12800
Max enhanced ISO 12800 25600
Minimum native ISO 100 125
RAW support
Minimum enhanced ISO - 80
Autofocusing
Focus manually
Touch to focus
AF continuous
Single AF
AF tracking
Selective AF
Center weighted AF
Multi area AF
AF live view
Face detect focusing
Contract detect focusing
Phase detect focusing
Total focus points 11 315
Lens
Lens mount type Pentax KAF2 fixed lens
Lens zoom range - 24-200mm (8.3x)
Largest aperture - f/2.8-4.5
Macro focusing distance - 8cm
Available lenses 151 -
Focal length multiplier 1.5 2.7
Screen
Display type Fixed Type Tilting
Display size 2.7 inch 3 inch
Display resolution 230k dots 1,229k dots
Selfie friendly
Liveview
Touch operation
Display technology TFT LCD monitor -
Viewfinder Information
Viewfinder type Optical (pentamirror) Electronic
Viewfinder resolution - 2,359k dots
Viewfinder coverage 96 percent 100 percent
Viewfinder magnification 0.57x 0.59x
Features
Min shutter speed 30s 30s
Max shutter speed 1/6000s 1/2000s
Max quiet shutter speed - 1/32000s
Continuous shutter rate 5.0fps 24.0fps
Shutter priority
Aperture priority
Manual mode
Exposure compensation Yes Yes
Set WB
Image stabilization
Integrated flash
Flash distance 16.00 m 5.90 m (at Auto ISO)
Flash modes Auto, On, Off, Red-Eye, Slow Sync, Rear curtain, Wireless -
External flash
AEB
WB bracketing
Max flash synchronize 1/180s 1/2000s
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Video resolutions 1280 x 720 (24 fps), 640 x 416 (24 fps) 3840 x 2160 @ 30p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM
Max video resolution 1280x720 3840x2160
Video format Motion JPEG MPEG-4, AVCHD, XAVC S
Mic support
Headphone support
Connectivity
Wireless None Built-In
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) NP-BX1 lithium-ion battery & USB charger
GPS None None
Physical
Environmental sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 580g (1.28 lb) 301g (0.66 lb)
Physical dimensions 123 x 92 x 68mm (4.8" x 3.6" x 2.7") 102 x 58 x 43mm (4.0" x 2.3" x 1.7")
DXO scores
DXO Overall rating 72 not tested
DXO Color Depth rating 22.8 not tested
DXO Dynamic range rating 12.5 not tested
DXO Low light rating 811 not tested
Other
Battery life 1900 pictures 240 pictures
Type of battery Battery Pack Battery Pack
Battery ID 4 x AA NP-BX1
Self timer Yes (2 or 12 sec) Yes
Time lapse shooting With downloadable app
Type of storage SD/SDHC card SD/ SDHC/SDXC, Memory Stick Pro Duo/ Pro-HG Duo
Card slots One One
Retail pricing $600 $1,198