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Pentax K-3 II vs Sony RX10 III

Portability
59
Imaging
66
Features
84
Overall
73
Pentax K-3 II front
 
Sony Cyber-shot DSC-RX10 III front
Portability
53
Imaging
52
Features
77
Overall
62

Pentax K-3 II vs Sony RX10 III Key Specs

Pentax K-3 II
(Full Review)
  • 24MP - APS-C Sensor
  • 3.2" Fixed Screen
  • ISO 100 - 51200
  • Sensor based Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Max Shutter
  • 1920 x 1080 video
  • Pentax KAF2 Mount
  • 800g - 131 x 100 x 77mm
  • Released April 2015
  • Replaced the Pentax K-3
Sony RX10 III
(Full Review)
  • 20MP - 1" Sensor
  • 3" Tilting Screen
  • ISO 125 - 12800 (Expand to 25600)
  • Optical Image Stabilization
  • 3840 x 2160 video
  • 24-600mm (F2.4-4.0) lens
  • 1051g - 133 x 94 x 127mm
  • Launched March 2016
  • Earlier Model is Sony RX10 II
  • Newer Model is Sony RX10 IV
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Pentax K-3 II vs Sony RX10 III Overview

Lets look much closer at the Pentax K-3 II vs Sony RX10 III, former being a Advanced DSLR while the latter is a Large Sensor Superzoom by manufacturers Pentax and Sony. The resolution of the K-3 II (24MP) and the RX10 III (20MP) is relatively close but the K-3 II (APS-C) and RX10 III (1") have totally different sensor sizing.

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The K-3 II was unveiled 11 months before the RX10 III and they are both of a similar age. Each of the cameras feature different body design with the Pentax K-3 II being a Mid-size SLR camera and the Sony RX10 III being a SLR-like (bridge) camera.

Before getting straight to a more detailed comparison, here is a brief highlight of how the K-3 II scores vs the RX10 III when it comes to portability, imaging, features and an overall grade.

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Reasons to pick Pentax K-3 II over the Sony RX10 III

 K-3 II RX10 III 
Screen size3.2"3"Bigger screen (+0.2")

Reasons to pick Sony RX10 III over the Pentax K-3 II

 RX10 III K-3 II 
LaunchedMarch 2016April 2015More recent by 11 months
Screen typeTiltingFixed Tilting screen
Screen resolution1229k1037kSharper screen (+192k dot)

Common features in the Pentax K-3 II and Sony RX10 III

 K-3 II RX10 III 
Manual focus More precise focus
Selfie screen Neither comes with selfie screen
Touch screen Neither comes with Touch screen

Pentax K-3 II vs Sony RX10 III Physical Comparison

If you are intending to lug around your camera regularly, you have to factor its weight and measurements. The Pentax K-3 II comes with outside dimensions of 131mm x 100mm x 77mm (5.2" x 3.9" x 3.0") and a weight of 800 grams (1.76 lbs) whilst the Sony RX10 III has proportions of 133mm x 94mm x 127mm (5.2" x 3.7" x 5.0") having a weight of 1051 grams (2.32 lbs).

See the Pentax K-3 II vs Sony RX10 III in our completely new Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Remember that, the weight of an ILC will differ depending on the lens you are using at the time. Following is a front view dimension comparison of the K-3 II versus the RX10 III.

Pentax K-3 II vs Sony RX10 III size comparison

Factoring in size and weight, the portability score of the K-3 II and RX10 III is 59 and 53 respectively.

Pentax K-3 II vs Sony RX10 III top view buttons comparison

Pentax K-3 II vs Sony RX10 III Sensor Comparison

Generally, it can be hard to visualise the contrast in sensor measurements simply by viewing specifications. The visual below will give you a clearer sense of the sensor dimensions in the K-3 II and RX10 III.

To sum up, both cameras feature different resolutions and different sensor measurements. The K-3 II having a bigger sensor will make shooting bokeh simpler and the Pentax K-3 II will result in greater detail having an extra 4 Megapixels. Higher resolution can also make it easier to crop pictures way more aggressively. The older K-3 II will be disadvantaged in sensor technology.

Pentax K-3 II vs Sony RX10 III sensor size comparison

Pentax K-3 II vs Sony RX10 III Screen and ViewFinder

Pentax K-3 II vs Sony RX10 III Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax K-3 II Portrait photography features
Sony RX10 III Portrait photography features
79
has manual focus
good MP (24 megapixels)
sensor size is decent (APS-C)
offers face detection focusing
delivers RAW formats
71
focusing manually
decent MP (20MP)
good sensor size (1")
includes face detect autofocus
supports RAW files
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Street Comparison

Pentax K-3 II Street photography information
Sony RX10 III Street photography information
69
built in image stabilization (Sensor based)
sensor size is decent (APS-C)
delivers RAW formats
weather proofing
very good ISO range (51,200)
screen is fixed
64
screen tilts
has image stabilization (Optical)
good sensor size (1")
supports RAW files
environment proof
heavier than others (1,051 grams)
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Sports Comparison

Sports photography with Pentax K-3 II
Sports photography with Sony RX10 III
76
maximum shutter speed is high (1/8,000s)
built in image stabilization (Sensor based)
good MP (24 megapixels)
sensor size is decent (APS-C)
offers tracking autofocus
weather proofing
comes with phase detect AF
bad battery life (720 CIPA)
70
long zoom range (24-600mm 25.0 x zoom)
silent shooting (1/32,000 seconds)
has image stabilization (Optical)
decent MP (20MP)
good sensor size (1")
includes tracking focus
environment proof
good battery pack (420 per charge)
has no phase detect autofocus
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Travel Comparison

Pentax K-3 II as a Travel photography camera
Sony RX10 III as a Travel photography camera
56
weather proofing
good MP (24MP)
bad battery life (720 CIPA)
display is not selfie friendly
55
good battery pack (420 CIPA)
environment proof
decent MP (20 megapixels)
built-in flash
rather wide (24mm)
long zoom (600mm)
missing Time Lapse function
heavier than others (1,051g)
screen isn't selfie friendly
slow max aperture (f2.4)
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Landscape Comparison

Pentax K-3 II Landscape photography highlights
Sony RX10 III Landscape photography highlights
78
has manual focus
switch lenses (Pentax KAF2 mount)
good sized screen (3.2 inches)
built in image stabilization (Sensor based)
good MP (24MP)
sensor size is decent (APS-C)
does not have anti-alias filter
very good ISO range (51,200)
delivers RAW formats
weather proofing
has double storage slots
bad battery life (720 shots)
63
focusing manually
rather wide (24mm)
screen size is decent (3")
has image stabilization (Optical)
decent MP (20 megapixels)
good sensor size (1")
supports RAW files
environment proof
good battery pack (420 shots)
lens is fixed (fixed lens mount)
slow max aperture (f2.4)
missing Time Lapse function
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Vlogging Comparison

Pentax K-3 II Vlogging information
Sony RX10 III Vlogging information
34
built in image stabilization (Sensor based)
offers face detection focusing
video resolution high (1920 x 1080 pxls)
does have external microphone port
display is not selfie friendly
28
rather wide (24mm)
has image stabilization (Optical)
includes face detect autofocus
high res video (3840 x 2160 pixels)
includes mic port
slow max aperture (f2.4)
screen isn't selfie friendly
heavier than others (1,051g)
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Pentax K-3 II vs Sony RX10 III Specifications

Detailed spec comparison table for Pentax K-3 II and Sony RX10 III
 Pentax K-3 IISony Cyber-shot DSC-RX10 III
General Information
Brand Name Pentax Sony
Model Pentax K-3 II Sony Cyber-shot DSC-RX10 III
Category Advanced DSLR Large Sensor Superzoom
Released 2015-04-23 2016-03-29
Body design Mid-size SLR SLR-like (bridge)
Sensor Information
Processor Chip Prime III Bionz X
Sensor type CMOS BSI-CMOS
Sensor size APS-C 1"
Sensor dimensions 23.5 x 15.6mm 13.2 x 8.8mm
Sensor surface area 366.6mm² 116.2mm²
Sensor resolution 24MP 20MP
Anti aliasing filter
Aspect ratio 3:2 1:1, 4:3, 3:2 and 16:9
Peak resolution 6016 x 4000 5472 x 3648
Highest native ISO 51200 12800
Highest enhanced ISO - 25600
Minimum native ISO 100 125
RAW images
Minimum enhanced ISO - 64
Autofocusing
Focus manually
AF touch
Continuous AF
Single AF
AF tracking
AF selectice
AF center weighted
AF multi area
Live view AF
Face detection AF
Contract detection AF
Phase detection AF
Number of focus points 27 25
Cross focus points 25 -
Lens
Lens mounting type Pentax KAF2 fixed lens
Lens focal range - 24-600mm (25.0x)
Max aperture - f/2.4-4.0
Macro focus distance - 3cm
Total lenses 151 -
Focal length multiplier 1.5 2.7
Screen
Screen type Fixed Type Tilting
Screen size 3.2 inches 3 inches
Resolution of screen 1,037 thousand dot 1,229 thousand dot
Selfie friendly
Liveview
Touch screen
Viewfinder Information
Viewfinder Optical (pentaprism) Electronic
Viewfinder resolution - 2,359 thousand dot
Viewfinder coverage 100% 100%
Viewfinder magnification 0.64x 0.7x
Features
Min shutter speed 30 secs 30 secs
Max shutter speed 1/8000 secs 1/2000 secs
Max silent shutter speed - 1/32000 secs
Continuous shutter speed 8.3 frames per sec 14.0 frames per sec
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Custom WB
Image stabilization
Integrated flash
Flash range no built-in flash 10.80 m (at Auto ISO)
Flash modes Auto Flash Discharge, Auto Flash + Red-eye Reduction, Flash On, Flash On + Red-eye Reduction, Slow-speed Sync, Slow-speed Sync + Red-eye, P-TTL, Trailing Curtain Sync, Contrast-control-sync, High-speed sync, Wireless sync (available with dedicated external flash) Auto, fill-flash, slow sync, rear sync, off
Hot shoe
AE bracketing
White balance bracketing
Max flash sync 1/180 secs -
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Video resolutions 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p, 30p, 25p, 24p) 3840 x 2160 (30p, 25p, 24p), 1920 x 1080 (60p, 60i, 24p) ,1440 x 1080 (30p), 640 x 480 (30p)
Highest video resolution 1920x1080 3840x2160
Video file format MPEG-4, H.264 MPEG-4, AVCHD, XAVC S
Mic jack
Headphone jack
Connectivity
Wireless Optional Built-In
Bluetooth
NFC
HDMI
USB USB 3.0 (5 GBit/sec) USB 2.0 (480 Mbit/sec)
GPS BuiltIn None
Physical
Environmental seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 800 grams (1.76 lb) 1051 grams (2.32 lb)
Physical dimensions 131 x 100 x 77mm (5.2" x 3.9" x 3.0") 133 x 94 x 127mm (5.2" x 3.7" x 5.0")
DXO scores
DXO Overall score 80 70
DXO Color Depth score 23.6 23.1
DXO Dynamic range score 13.6 12.6
DXO Low light score 1106 472
Other
Battery life 720 shots 420 shots
Battery form Battery Pack Battery Pack
Battery model D-LI90 NP-FW50
Self timer Yes ( 2 or 12 seconds) Yes (2 or 10 sec, continuous)
Time lapse feature
Type of storage Dual SD/SDHC/SDXC SD/SDHC/SDXC, Memory Stick Duo/Pro Duo/Pro-HG Duo
Storage slots Two 1
Launch cost $829 $1,398