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Pentax K-r vs Sony RX100

Portability
67
Imaging
53
Features
52
Overall
52
Pentax K-r front
 
Sony Cyber-shot DSC-RX100 front
Portability
91
Imaging
50
Features
68
Overall
57

Pentax K-r vs Sony RX100 Key Specs

Pentax K-r
(Full Review)
  • 12MP - APS-C Sensor
  • 3" Fixed Screen
  • ISO 200 - 12800 (Raise to 25600)
  • Sensor based Image Stabilization
  • 1/6000s Max Shutter
  • 1280 x 720 video
  • Pentax KAF2 Mount
  • 598g - 125 x 97 x 68mm
  • Revealed March 2011
Sony RX100
(Full Review)
  • 20MP - 1" Sensor
  • 3" Fixed Display
  • ISO 100 - 25600
  • Optical Image Stabilization
  • 1920 x 1080 video
  • 28-100mm (F1.8-4.9) lens
  • 240g - 102 x 58 x 36mm
  • Revealed August 2012
  • Updated by Sony RX100 II
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Pentax K-r vs Sony RX100 Overview

Below, we are contrasting the Pentax K-r versus Sony RX100, former being a Entry-Level DSLR while the other is a Large Sensor Compact by companies Pentax and Sony. There is a noticeable difference among the resolutions of the K-r (12MP) and RX100 (20MP) and the K-r (APS-C) and RX100 (1") possess totally different sensor dimensions.

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The K-r was released 17 months earlier than the RX100 making the cameras a generation apart from each other. Both the cameras come with different body type with the Pentax K-r being a Compact SLR camera and the Sony RX100 being a Large Sensor Compact camera.

Before diving through a more detailed comparison, below is a simple synopsis of how the K-r matches up vs the RX100 for portability, imaging, features and an overall rating.

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Reasons to pick Pentax K-r over the Sony RX100

 K-r RX100 

Reasons to pick Sony RX100 over the Pentax K-r

 RX100 K-r 
RevealedAugust 2012March 2011Fresher by 17 months
Display resolution1229k921kCrisper display (+308k dot)

Common features in the Pentax K-r and Sony RX100

 K-r RX100 
Manual focus Dial accurate focusing
Display typeFixed Fixed Fixed display
Display dimension3"3"Identical display sizing
Selfie screen Neither comes with selfie screen
Touch display Neither comes with Touch display

Pentax K-r vs Sony RX100 Physical Comparison

For anyone who is intending to carry your camera frequently, you'll need to take into account its weight and proportions. The Pentax K-r comes with physical dimensions of 125mm x 97mm x 68mm (4.9" x 3.8" x 2.7") and a weight of 598 grams (1.32 lbs) while the Sony RX100 has measurements of 102mm x 58mm x 36mm (4.0" x 2.3" x 1.4") along with a weight of 240 grams (0.53 lbs).

See the Pentax K-r versus Sony RX100 in our completely new Camera & 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 using at the time. Underneath is the front view dimensions comparison of the K-r and the RX100.

Pentax K-r vs Sony RX100 size comparison

Looking at size and weight, the portability score of the K-r and RX100 is 67 and 91 respectively.

Pentax K-r vs Sony RX100 top view buttons comparison

Pentax K-r vs Sony RX100 Sensor Comparison

Usually, it is difficult to see the contrast in sensor sizing merely by looking through technical specs. The visual below may provide you a greater sense of the sensor sizes in the K-r and RX100.

As you can tell, each of these cameras posses different megapixel count and different sensor sizing. The K-r because of its larger sensor will make achieving bokeh easier and the Sony RX100 will render greater detail as a result of its extra 8MP. Greater resolution will help you crop photos somewhat more aggressively. The older K-r will be behind in sensor technology.

Pentax K-r vs Sony RX100 sensor size comparison

Pentax K-r vs Sony RX100 Screen and ViewFinder

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

Portrait Comparison

Pentax K-r Portrait photography details
Sony RX100 Portrait photography details
63
has manual focus
sensor size is good (APS-C)
supports face detect autofocus
delivers RAW files
megapixel count low (12MP)
64
manual focus
high flash sync speed (1/2,000s)
decent MP (20 megapixels)
sensor size is good (1")
offers face detect autofocus
saves RAW files
cannot use external flash
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Street Comparison

Street photography with Pentax K-r
Street photography with Sony RX100
67
image stabilization (Sensor based)
sensor size is good (APS-C)
delivers RAW files
no moving screen
79
has image stabilization (Optical)
sensor size is good (1")
saves RAW files
lighter than competition (240g)
great high ISO (25,600)
no moving screen
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Sports Comparison

Pentax K-r Sports photography factors
Sony RX100 Sports photography factors
55
max shutter speed is good (1/6,000 seconds)
image stabilization (Sensor based)
sensor size is good (APS-C)
comes with phase detect autofocus
painfully slow continuous shooting (6.0 frames/s)
megapixel count low (12 megapixels)
low battery life (470 shots)
65
has image stabilization (Optical)
decent MP (20MP)
sensor size is good (1")
offers tracking focus
no phase detect autofocus
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Travel Comparison

Pentax K-r Travel photography advice
Sony RX100 Travel photography advice
47
has built in flash
low battery life (470 per charge)
megapixel count low (12 megapixels)
does not posses selfie friendly screen
79
lighter than competition (240 grams)
decent MP (20MP)
flash built-in
really wide (28mm)
great max aperture (f1.8)
doesn't have a selfie friendly screen
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Landscape Comparison

Pentax K-r Landscape photography details
Sony RX100 Landscape photography details
65
has manual focus
change lenses (Pentax KAF2 mount)
pretty good screen size (3 inch)
image stabilization (Sensor based)
sensor size is good (APS-C)
delivers RAW files
megapixel count low (12MP)
low battery life (470 per charge)
74
manual focus
really wide (28mm)
great max aperture (f1.8)
screen size is good (3 inches)
has image stabilization (Optical)
decent MP (20MP)
sensor size is good (1")
great high ISO (25,600)
saves RAW files
fixed lens (fixed lens mount)
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Vlogging Comparison

Pentax K-r Vlogging highlights
Sony RX100 Vlogging highlights
26
image stabilization (Sensor based)
supports face detect autofocus
does not posses selfie friendly screen
video resolution low (1280 x 720 pixels)
doesn't have microphone support
38
really wide (28mm)
great max aperture (f1.8)
has image stabilization (Optical)
offers face detect autofocus
video res high (1920 x 1080 pixels)
lighter than competition (240g)
doesn't have a selfie friendly screen
does not have mic support
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Pentax K-r vs Sony RX100 Specifications

Detailed spec comparison table for Pentax K-r and Sony RX100
 Pentax K-rSony Cyber-shot DSC-RX100
General Information
Company Pentax Sony
Model Pentax K-r Sony Cyber-shot DSC-RX100
Type Entry-Level DSLR Large Sensor Compact
Revealed 2011-03-11 2012-08-28
Physical type Compact SLR Large Sensor Compact
Sensor Information
Processor Chip Prime II -
Sensor type CMOS CMOS
Sensor size APS-C 1"
Sensor dimensions 23.6 x 15.8mm 13.2 x 8.8mm
Sensor surface area 372.9mm² 116.2mm²
Sensor resolution 12 megapixel 20 megapixel
Anti aliasing filter
Aspect ratio 3:2 1:1, 4:3, 3:2 and 16:9
Highest resolution 4288 x 2848 5472 x 3648
Highest native ISO 12800 25600
Highest boosted ISO 25600 -
Min native ISO 200 100
RAW format
Min boosted ISO 100 -
Autofocusing
Focus manually
Autofocus touch
Autofocus continuous
Autofocus single
Autofocus tracking
Selective autofocus
Autofocus center weighted
Multi area autofocus
Autofocus live view
Face detection autofocus
Contract detection autofocus
Phase detection autofocus
Number of focus points 11 25
Cross focus points 9 -
Lens
Lens mount Pentax KAF2 fixed lens
Lens focal range - 28-100mm (3.6x)
Maximum aperture - f/1.8-4.9
Macro focus range - 5cm
Total lenses 151 -
Focal length multiplier 1.5 2.7
Screen
Type of screen Fixed Type Fixed Type
Screen diagonal 3 inches 3 inches
Screen resolution 921k dots 1,229k dots
Selfie friendly
Liveview
Touch capability
Screen technology TFT LCD monitor WhiteMagic TFT LCD
Viewfinder Information
Viewfinder Optical (pentamirror) None
Viewfinder coverage 96 percent -
Viewfinder magnification 0.57x -
Features
Slowest shutter speed 30s 30s
Maximum shutter speed 1/6000s 1/2000s
Continuous shooting rate 6.0 frames/s 10.0 frames/s
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Custom white balance
Image stabilization
Built-in flash
Flash range 12.00 m (at ISO 100) -
Flash options Auto, Red-eye Reduction, Slow-speed Sync, Trailing Curtain Sync, High-Speed Sync and Wireless Sync Auto, On, Off, Slow Sync
Hot shoe
AE bracketing
White balance bracketing
Maximum 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 (25 fps), 640 x 480 (25 fps) 1920 x 1080 (60 fps), 1440 x 1080 (30 fps), 1280 x 720 (30 fps), 640 x 480 (30 fps)
Highest video resolution 1280x720 1920x1080
Video format Motion JPEG MPEG-4, AVCHD
Mic support
Headphone support
Connectivity
Wireless None Eye-Fi Connected
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS Optional None
Physical
Environmental sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 598g (1.32 lbs) 240g (0.53 lbs)
Dimensions 125 x 97 x 68mm (4.9" x 3.8" x 2.7") 102 x 58 x 36mm (4.0" x 2.3" x 1.4")
DXO scores
DXO All around score 72 66
DXO Color Depth score 22.9 22.6
DXO Dynamic range score 12.4 12.4
DXO Low light score 755 390
Other
Battery life 470 shots 330 shots
Battery style Battery Pack Battery Pack
Battery model D-LI109,4 x AA NP-BX1
Self timer Yes (2 or 12 sec) Yes (2 or 10 sec, Portrait 1/2)
Time lapse shooting With downloadable app
Type of storage SD/SDHC SD/SDHC/SDXC, Memory Stick Duo/Pro Duo/Pro-HG Duo
Card slots Single Single
Price at launch $1,100 $448