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Pentax K-3 II vs Sony RX10 IV

Portability
59
Imaging
66
Features
84
Overall
73
Pentax K-3 II front
 
Sony Cyber-shot DSC-RX10 IV front
Portability
52
Imaging
53
Features
82
Overall
64

Pentax K-3 II vs Sony RX10 IV Key Specs

Pentax K-3 II
(Full Review)
  • 24MP - APS-C Sensor
  • 3.2" Fixed Display
  • ISO 100 - 51200
  • Sensor based Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Maximum Shutter
  • 1920 x 1080 video
  • Pentax KAF2 Mount
  • 800g - 131 x 100 x 77mm
  • Revealed April 2015
  • Replaced the Pentax K-3
Sony RX10 IV
(Full Review)
  • 20MP - 1" Sensor
  • 3" Tilting Screen
  • ISO 125 - 12800 (Push to 25600)
  • Optical Image Stabilization
  • 3840 x 2160 video
  • 24-600mm (F2.4-4.0) lens
  • 1095g - 133 x 94 x 145mm
  • Introduced September 2017
  • Previous Model is Sony RX10 III
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Pentax K-3 II vs Sony RX10 IV Overview

In this write-up, we will be analyzing the Pentax K-3 II versus Sony RX10 IV, former is a Advanced DSLR while the latter is a Large Sensor Superzoom by companies Pentax and Sony. The resolution of the K-3 II (24MP) and the RX10 IV (20MP) is pretty well matched but the K-3 II (APS-C) and RX10 IV (1") feature different sensor measurements.

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The K-3 II was introduced 3 years earlier than the RX10 IV which is quite a sizable difference as far as technology is concerned. Both cameras offer different body type with the Pentax K-3 II being a Mid-size SLR camera and the Sony RX10 IV being a SLR-like (bridge) camera.

Before diving straight into a complete comparison, below is a brief summary of how the K-3 II matches up against the RX10 IV with regards to portability, imaging, features and an overall mark.

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

 K-3 II RX10 IV 
Screen sizing3.2"3"Bigger screen (+0.2")

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

 RX10 IV K-3 II 
IntroducedSeptember 2017April 2015Newer by 29 months
Screen typeTiltingFixed Tilting screen
Screen resolution1440k1037kCrisper screen (+403k dot)
Touch screen Quickly navigate

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

 K-3 II RX10 IV 
Focus manually Very precise focus
Selfie screen Missing selfie screen

Pentax K-3 II vs Sony RX10 IV Physical Comparison

When you are looking to travel with your camera, you have to factor in its weight and size. The Pentax K-3 II offers exterior dimensions of 131mm x 100mm x 77mm (5.2" x 3.9" x 3.0") accompanied by a weight of 800 grams (1.76 lbs) and the Sony RX10 IV has specifications of 133mm x 94mm x 145mm (5.2" x 3.7" x 5.7") and a weight of 1095 grams (2.41 lbs).

Contrast the Pentax K-3 II versus Sony RX10 IV in our newest Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Bear in mind, the weight of an ILC will change depending on the lens you have chosen during that time. The following is the front view measurement comparison of the K-3 II versus the RX10 IV.

Pentax K-3 II vs Sony RX10 IV size comparison

Considering dimensions and weight, the portability grade of the K-3 II and RX10 IV is 59 and 52 respectively.

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

Pentax K-3 II vs Sony RX10 IV Sensor Comparison

Typically, it can be hard to visualize the difference between sensor dimensions only by reading through technical specs. The pic underneath will help offer you a more clear sense of the sensor dimensions in the K-3 II and RX10 IV.

As you can tell, both of these cameras offer different megapixels and different sensor dimensions. The K-3 II with its bigger sensor is going to make getting shallower depth of field less difficult and the Pentax K-3 II will resolve more detail using its extra 4MP. Higher resolution will enable you to crop shots a little more aggressively. The more aged K-3 II is going to be disadvantaged with regard to sensor innovation.

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

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

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

Portrait Comparison

Portrait photography with Pentax K-3 II
Portrait photography with Sony RX10 IV
79
manual focus
megapixel count good (24 megapixels)
decent sensor size (APS-C)
supports face detection focus
delivers RAW files
71
manual focus
great flash sync speed (1/2,000s)
megapixel count good (20MP)
sensor size is decent (1")
offers face detect focusing
supports RAW files
Photography Glossary

Street Comparison

Pentax K-3 II as a Street photography camera
Sony RX10 IV as a Street photography camera
69
has image stabilization (Sensor based)
decent sensor size (APS-C)
delivers RAW files
weather proof
good ISO range (51,200)
no moving screen
64
tilting screen
image stabilization (Optical)
sensor size is decent (1")
supports RAW files
comes with focus by touch
weather proofing
heavier than average (1,095 grams)
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Sports Comparison

Pentax K-3 II Sports photography factors
Sony RX10 IV Sports photography factors
76
great max shutter speed (1/8,000s)
has image stabilization (Sensor based)
megapixel count good (24MP)
decent sensor size (APS-C)
supports tracking autofocus
weather proof
has phase detect auto focus
bad battery life (720 CIPA)
76
long zoom range (24-600mm 25.0 x zoom)
quiet shooting (1/32,000s)
high max fps (24.0 fps)
image stabilization (Optical)
megapixel count good (20 megapixels)
sensor size is decent (1")
offers tracking focus
weather proofing
comes with phase detect AF
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Travel Comparison

Pentax K-3 II Travel photography details
Sony RX10 IV Travel photography details
56
weather proof
megapixel count good (24 megapixels)
bad battery life (720 CIPA)
does not feature selfie friendly display
56
weather proofing
supports bluetooth
comes with focus by touch
megapixel count good (20MP)
built-in flash
decently wide (24mm)
very long zoom (600mm)
no Time Lapse recording
heavier than average (1,095 grams)
does not feature selfie friendly display
somewhat slow maximum aperture (f2.4)
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Landscape Comparison

Landscape photography with Pentax K-3 II
Landscape photography with Sony RX10 IV
78
manual focus
switch lenses (Pentax KAF2 mount)
good sized screen (3.2 inches)
has image stabilization (Sensor based)
megapixel count good (24 megapixels)
decent sensor size (APS-C)
doesnt have anti-alias filter
good ISO range (51,200)
delivers RAW files
weather proof
has dual storage slots
bad battery life (720 shots)
62
manual focus
decently wide (24mm)
screen is a good size (3 inches)
image stabilization (Optical)
megapixel count good (20MP)
sensor size is decent (1")
supports RAW files
weather proofing
cannot swap lens (fixed lens mount)
somewhat slow maximum aperture (f2.4)
no Time Lapse recording
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Vlogging Comparison

Pentax K-3 II Vlogging information
Sony RX10 IV Vlogging information
34
has image stabilization (Sensor based)
supports face detection focus
high res video (1920 x 1080 resolution)
has external mic jack
does not feature selfie friendly display
29
decently wide (24mm)
touch screen
image stabilization (Optical)
offers face detect focusing
high video quality (3840 x 2160 pixels)
does have mic jack
somewhat slow maximum aperture (f2.4)
does not feature selfie friendly display
heavier than average (1,095g)
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Pentax K-3 II vs Sony RX10 IV Specifications

Detailed spec comparison table for Pentax K-3 II and Sony RX10 IV
 Pentax K-3 IISony Cyber-shot DSC-RX10 IV
General Information
Company Pentax Sony
Model Pentax K-3 II Sony Cyber-shot DSC-RX10 IV
Type Advanced DSLR Large Sensor Superzoom
Revealed 2015-04-23 2017-09-12
Body design Mid-size SLR SLR-like (bridge)
Sensor Information
Processor 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 24 megapixels 20 megapixels
Anti aliasing filter
Aspect ratio 3:2 1:1, 4:3, 3:2 and 16:9
Max resolution 6016 x 4000 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 27 315
Cross focus points 25 -
Lens
Lens mounting type Pentax KAF2 fixed lens
Lens focal range - 24-600mm (25.0x)
Maximum aperture - f/2.4-4.0
Macro focus range - 3cm
Available lenses 151 -
Crop factor 1.5 2.7
Screen
Display type Fixed Type Tilting
Display size 3.2" 3"
Resolution of display 1,037 thousand dot 1,440 thousand dot
Selfie friendly
Liveview
Touch display
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 30s 30s
Max shutter speed 1/8000s 1/2000s
Max quiet shutter speed - 1/32000s
Continuous shutter speed 8.3fps 24.0fps
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Custom WB
Image stabilization
Built-in 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
External flash
AEB
White balance bracketing
Max flash sync 1/180s 1/2000s
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Supported 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)
Max video resolution 1920x1080 3840x2160
Video file format MPEG-4, H.264 MPEG-4, AVCHD, XAVC S
Mic input
Headphone input
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
Environment seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 800 gr (1.76 lbs) 1095 gr (2.41 lbs)
Dimensions 131 x 100 x 77mm (5.2" x 3.9" x 3.0") 133 x 94 x 145mm (5.2" x 3.7" x 5.7")
DXO scores
DXO Overall score 80 not tested
DXO Color Depth score 23.6 not tested
DXO Dynamic range score 13.6 not tested
DXO Low light score 1106 not tested
Other
Battery life 720 pictures 400 pictures
Form of battery 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 shooting
Storage media Dual SD/SDHC/SDXC SD/SDHC/SDXC, Memory Stick Duo/Pro Duo/Pro-HG Duo
Storage slots Dual One
Pricing at release $829 $1,698