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Pentax K-S1 vs Sony RX10 II

Portability
69
Imaging
62
Features
70
Overall
65
Pentax K-S1 front
 
Sony Cyber-shot DSC-RX10 II front
Portability
58
Imaging
51
Features
77
Overall
61

Pentax K-S1 vs Sony RX10 II Key Specs

Pentax K-S1
(Full Review)
  • 20MP - APS-C Sensor
  • 3" Fixed Display
  • ISO 100 - 51200
  • Sensor based Image Stabilization
  • No Anti-Alias Filter
  • 1/6000s Max Shutter
  • 1920 x 1080 video
  • Pentax KAF2 Mount
  • 558g - 121 x 93 x 70mm
  • Introduced August 2014
  • Later Model is Pentax K-S2
Sony RX10 II
(Full Review)
  • 20MP - 1" Sensor
  • 3" Tilting Display
  • ISO 125 - 12800 (Boost to 25600)
  • Optical Image Stabilization
  • 3840 x 2160 video
  • 24-200mm (F2.8) lens
  • 813g - 129 x 88 x 102mm
  • Launched June 2015
  • Earlier Model is Sony RX10
  • Replacement is Sony RX10 III
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Pentax K-S1 vs Sony RX10 II Overview

Below is a thorough analysis of the Pentax K-S1 versus Sony RX10 II, former being a Advanced DSLR while the other is a Large Sensor Superzoom by manufacturers Pentax and Sony. The sensor resolution of the K-S1 (20MP) and the RX10 II (20MP) is fairly close but the K-S1 (APS-C) and RX10 II (1") posses totally different sensor sizes.

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The K-S1 was introduced 9 months before the RX10 II which means that they are both of a similar age. Each of these cameras feature different body design with the Pentax K-S1 being a Mid-size SLR camera and the Sony RX10 II being a SLR-like (bridge) camera.

Before we go right into a step-by-step comparison, here is a quick highlight of how the K-S1 matches up versus the RX10 II for portability, imaging, features and an overall grade.

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Reasons to pick Pentax K-S1 over the Sony RX10 II

 K-S1 RX10 II 

Reasons to pick Sony RX10 II over the Pentax K-S1

 RX10 II K-S1 
LaunchedJune 2015August 2014More recent by 9 months
Display typeTiltingFixed Tilting display
Display resolution1229k921kClearer display (+308k dot)

Common features in the Pentax K-S1 and Sony RX10 II

 K-S1 RX10 II 
Manually focus Very exact focus
Display size3"3"Same display dimensions
Selfie screen Missing selfie screen
Touch friendly display Missing Touch friendly display

Pentax K-S1 vs Sony RX10 II Physical Comparison

For anyone who is aiming to lug around your camera, you'll have to factor in its weight and size. The Pentax K-S1 comes with outer dimensions of 121mm x 93mm x 70mm (4.8" x 3.7" x 2.8") accompanied by a weight of 558 grams (1.23 lbs) while the Sony RX10 II has specifications of 129mm x 88mm x 102mm (5.1" x 3.5" x 4.0") with a weight of 813 grams (1.79 lbs).

Take a look at the Pentax K-S1 versus Sony RX10 II in our newest Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into consideration, the weight of an ILC will differ depending on the lens you are using at that moment. Underneath is a front view physical size comparison of the K-S1 against the RX10 II.

Pentax K-S1 vs Sony RX10 II size comparison

Using size and weight, the portability rating of the K-S1 and RX10 II is 69 and 58 respectively.

Pentax K-S1 vs Sony RX10 II top view buttons comparison

Pentax K-S1 vs Sony RX10 II Sensor Comparison

Oftentimes, it is very tough to see the gap in sensor measurements purely by looking through specs. The graphic below will help provide you a more clear sense of the sensor sizes in the K-S1 and RX10 II.

All in all, both of these cameras feature the identical resolution but not the same sensor measurements. The K-S1 provides the larger sensor which should make obtaining shallower depth of field simpler. The older K-S1 will be behind when it comes to sensor technology.

Pentax K-S1 vs Sony RX10 II sensor size comparison

Pentax K-S1 vs Sony RX10 II Screen and ViewFinder

Pentax K-S1 vs Sony RX10 II Screen and Viewfinder comparison
Photography Glossary

Photography Type Scores

Portrait Comparison

Pentax K-S1 Portrait photography info
Sony RX10 II Portrait photography info
77
has manual focus
megapixel count good (20 megapixels)
sensor size is nice (APS-C)
comes with face detection autofocus
supports RAW files
70
manual focus
good MP (20 megapixels)
sensor size is nice (1")
has face detect focus
supports RAW files
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Street Comparison

Street photography with Pentax K-S1
Street photography with Sony RX10 II
72
image stabilization (Sensor based)
sensor size is nice (APS-C)
supports RAW files
lighter than competition (558 grams)
great high ISO (51,200)
screen does not articulate
72
screen tilts up and down
built in image stabilization (Optical)
sensor size is nice (1")
supports RAW files
weather proof
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Sports Comparison

Pentax K-S1 as a Sports photography camera
Sony RX10 II as a Sports photography camera
68
high shutter speed (1/6,000s)
image stabilization (Sensor based)
megapixel count good (20 megapixels)
sensor size is nice (APS-C)
comes with tracking autofocus
sensor has phase detect autofocus
max frames per second low (5.4 frames/s)
low battery pack (410 per charge)
68
quiet shooting (1/32,000 seconds)
built in image stabilization (Optical)
good MP (20MP)
sensor size is nice (1")
has tracking focus
weather proof
has no phase detect auto focus
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Travel Comparison

Pentax K-S1 Travel photography factors
Sony RX10 II Travel photography factors
60
lighter than competition (558g)
megapixel count good (20 megapixels)
has built in flash
doesn't have Timelapse function
low battery pack (410 per charge)
display isn't selfie friendly
56
weather proof
good MP (20MP)
has built in flash
quite wide (24mm)
does not have Timelapse recording
display isn't selfie friendly
somewhat slow max aperture (f2.8)
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Landscape Comparison

Pentax K-S1 Landscape photography advice
Sony RX10 II Landscape photography advice
72
has manual focus
switch lenses (Pentax KAF2 mount)
pretty good screen size (3")
image stabilization (Sensor based)
megapixel count good (20MP)
sensor size is nice (APS-C)
doesnt have low pass filter
great high ISO (51,200)
supports RAW files
low battery pack (410 shots)
doesn't have Timelapse function
62
manual focus
quite wide (24mm)
nice screen size (3 inch)
built in image stabilization (Optical)
good MP (20 megapixels)
sensor size is nice (1")
supports RAW files
weather proof
fixed lens (fixed lens mount)
somewhat slow max aperture (f2.8)
does not have Timelapse recording
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Vlogging Comparison

Vlogging with Pentax K-S1
Vlogging with Sony RX10 II
33
image stabilization (Sensor based)
comes with face detection autofocus
good video quality (1920 x 1080 pixels)
lighter than competition (558 grams)
display isn't selfie friendly
doesn't have external microphone support
30
quite wide (24mm)
built in image stabilization (Optical)
has face detect focus
video resolution high (3840 x 2160 resolution)
includes microphone support
somewhat slow max aperture (f2.8)
display isn't selfie friendly
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Pentax K-S1 vs Sony RX10 II Specifications

Detailed spec comparison table for Pentax K-S1 and Sony RX10 II
 Pentax K-S1Sony Cyber-shot DSC-RX10 II
General Information
Company Pentax Sony
Model Pentax K-S1 Sony Cyber-shot DSC-RX10 II
Class Advanced DSLR Large Sensor Superzoom
Introduced 2014-08-27 2015-06-10
Physical type Mid-size SLR SLR-like (bridge)
Sensor Information
Processor Chip Prime MII Bionz X
Sensor type CMOS BSI-CMOS
Sensor size APS-C 1"
Sensor measurements 23.5 x 15.6mm 13.2 x 8.8mm
Sensor surface area 366.6mm² 116.2mm²
Sensor resolution 20 megapixels 20 megapixels
Anti aliasing filter
Aspect ratio 3:2 1:1, 4:3, 3:2 and 16:9
Max resolution 5472 x 3648 5472 x 3648
Max native ISO 51200 12800
Max enhanced ISO - 25600
Min native ISO 100 125
RAW data
Min enhanced ISO - 64
Autofocusing
Focus manually
Touch focus
Continuous AF
Single AF
Tracking AF
AF selectice
AF center weighted
AF multi area
Live view AF
Face detect AF
Contract detect AF
Phase detect AF
Number of focus points 11 25
Lens
Lens mount Pentax KAF2 fixed lens
Lens focal range - 24-200mm (8.3x)
Max aperture - f/2.8
Macro focus distance - 3cm
Total lenses 151 -
Crop factor 1.5 2.7
Screen
Type of display Fixed Type Tilting
Display diagonal 3 inch 3 inch
Resolution of display 921 thousand dots 1,229 thousand dots
Selfie friendly
Liveview
Touch screen
Viewfinder Information
Viewfinder Optical (pentaprism) Electronic
Viewfinder resolution - 2,359 thousand dots
Viewfinder coverage 100% 100%
Viewfinder magnification 0.64x 0.7x
Features
Min shutter speed 30 seconds 30 seconds
Max shutter speed 1/6000 seconds 1/2000 seconds
Max quiet shutter speed - 1/32000 seconds
Continuous shutter rate 5.4 frames/s 14.0 frames/s
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Change WB
Image stabilization
Integrated flash
Flash range 10.00 m (at ISO 100) 10.20 m
Flash settings Auto, auto + redeye, on, on + redeye reduction, slow sync, trailing curtain sync, manual Auto, fill-flash, slow sync, rear sync, off
External flash
AE bracketing
White balance bracketing
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Supported video resolutions 1920 x 1080 (30,25,24 fps), 1280 x 720 (60,50 fps) 3840 x 2160 (30p, 25p, 24p), 1920 x 1080 (60p, 60i, 24p) ,1440 x 1080 (30p), 640 x 480 (30p)
Max video resolution 1920x1080 3840x2160
Video data format H.264 MPEG-4, AVCHD, XAVC S
Microphone support
Headphone support
Connectivity
Wireless Eye-Fi Connected Built-In
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS Optional None
Physical
Environment sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 558 grams (1.23 pounds) 813 grams (1.79 pounds)
Physical dimensions 121 x 93 x 70mm (4.8" x 3.7" x 2.8") 129 x 88 x 102mm (5.1" x 3.5" x 4.0")
DXO scores
DXO Overall score 78 70
DXO Color Depth score 23.5 23.0
DXO Dynamic range score 13.0 12.6
DXO Low light score 1061 531
Other
Battery life 410 images 400 images
Form of battery Battery Pack Battery Pack
Battery model D-LI109 NP-FW50
Self timer Yes ( 2 or 12 seconds) Yes (2 or 10 sec, continuous)
Time lapse feature
Storage type SD/SDHC/SDXC SD/SDHC/SDXC, Memory Stick Duo/Pro Duo/Pro-HG Duo
Card slots One One
Cost at release $339 $998