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Pentax K20D vs Sony TX100V

Portability
59
Imaging
53
Features
52
Overall
52
Pentax K20D front
 
Sony Cyber-shot DSC-TX100V front
Portability
95
Imaging
38
Features
40
Overall
38

Pentax K20D vs Sony TX100V Key Specs

Pentax K20D
(Full Review)
  • 15MP - APS-C Sensor
  • 2.7" Fixed Screen
  • ISO 100 - 3200 (Expand to 6400)
  • Sensor based Image Stabilization
  • No Video
  • Pentax KAF2 Mount
  • 800g - 142 x 101 x 70mm
  • Released June 2008
  • Replaced the Pentax K10D
Sony TX100V
(Full Review)
  • 16MP - 1/2.3" Sensor
  • 3.5" Fixed Screen
  • ISO 125 - 3200
  • Optical Image Stabilization
  • 1920 x 1080 video
  • 25-100mm (F3.5-4.6) lens
  • 147g - 97 x 59 x 18mm
  • Announced January 2011
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Pentax K20D vs Sony TX100V Overview

Its time to look more closely at the Pentax K20D vs Sony TX100V, one is a Advanced DSLR and the latter is a Ultracompact by companies Pentax and Sony. The resolution of the K20D (15MP) and the TX100V (16MP) is pretty well matched but the K20D (APS-C) and TX100V (1/2.3") posses different sensor dimensions.

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The K20D was brought out 3 years prior to the TX100V which is quite a sizable gap as far as tech is concerned. Both cameras feature different body design with the Pentax K20D being a Mid-size SLR camera and the Sony TX100V being a Ultracompact camera.

Before delving right into a full comparison, here is a quick summation of how the K20D scores vs the TX100V for portability, imaging, features and an overall mark.

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Reasons to pick Pentax K20D over the Sony TX100V

 K20D TX100V 
Manually focus Very precise focusing

Reasons to pick Sony TX100V over the Pentax K20D

 TX100V K20D 
AnnouncedJanuary 2011June 2008Newer by 30 months
Screen size3.5"2.7"Bigger screen (+0.8")
Screen resolution1229k230kClearer screen (+999k dot)
Touch screen Quickly navigate

Common features in the Pentax K20D and Sony TX100V

 K20D TX100V 
Screen typeFixed Fixed Fixed screen
Selfie screen Neither has selfie screen

Pentax K20D vs Sony TX100V Physical Comparison

When you are planning to travel with your camera, you need to factor its weight and measurements. The Pentax K20D has external dimensions of 142mm x 101mm x 70mm (5.6" x 4.0" x 2.8") accompanied by a weight of 800 grams (1.76 lbs) and the Sony TX100V has proportions of 97mm x 59mm x 18mm (3.8" x 2.3" x 0.7") accompanied by a weight of 147 grams (0.32 lbs).

Examine the Pentax K20D vs Sony TX100V in the all new Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Bear in mind, the weight of an Interchangeable Lens Camera will differ based on the lens you are utilising at that moment. Here is a front view dimensions comparison of the K20D vs the TX100V.

Pentax K20D vs Sony TX100V size comparison

Using size and weight, the portability grade of the K20D and TX100V is 59 and 95 respectively.

Pentax K20D vs Sony TX100V top view buttons comparison

Pentax K20D vs Sony TX100V Sensor Comparison

In many cases, it is very difficult to imagine the difference between sensor dimensions purely by checking technical specs. The image here will provide you a more clear sense of the sensor dimensions in the K20D and TX100V.

As you can tell, the 2 cameras come with different megapixel count and different sensor dimensions. The K20D because of its bigger sensor is going to make shooting shallow DOF easier and the Sony TX100V will give extra detail having its extra 1MP. Higher resolution can also enable you to crop pictures a good deal more aggressively. The more aged K20D is going to be disadvantaged with regard to sensor tech.

Pentax K20D vs Sony TX100V sensor size comparison

Pentax K20D vs Sony TX100V Screen and ViewFinder

Pentax K20D vs Sony TX100V Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax K20D Portrait photography info
Sony TX100V Portrait photography info
71
focusing manually
MP count decent (15 megapixels)
good sensor size (APS-C)
supports RAW formats
29
decent sensor resolution (16MP)
no manual focus
no manual control
external flash not possible
very small sensor size (1/2.3")
no RAW format
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Street Comparison

Pentax K20D Street photography factors
Sony TX100V Street photography factors
65
has image stabilization (Sensor based)
good sensor size (APS-C)
supports RAW formats
weather proofing
no articulating screen
60
has image stabilization (Optical)
includes touch to focus
no moving screen
very small sensor size (1/2.3")
no RAW format
heavier than others (147 grams)
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Sports Comparison

Pentax K20D as a Sports photography camera
Sony TX100V as a Sports photography camera
68
has image stabilization (Sensor based)
MP count decent (15 megapixels)
good sensor size (APS-C)
weather proofing
comes with phase detect autofocus
max fps low (3.0 fps)
39
has image stabilization (Optical)
decent sensor resolution (16MP)
no shutter priority mode
very small sensor size (1/2.3")
no phase detect autofocus
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Travel Comparison

Travel photography with Pentax K20D
Travel photography with Sony TX100V
64
weather proofing
MP count decent (15 megapixels)
has built in flash
screen is not selfie friendly
65
includes touch to focus
decent sensor resolution (16MP)
built-in flash
rather wide (25mm)
does not have Time Lapse function
heavier than others (147g)
screen is not selfie friendly
slow maximum aperture (f3.5)
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Landscape Comparison

Pentax K20D Landscape photography info
Sony TX100V Landscape photography info
70
focusing manually
swap lenses (Pentax KAF2 mount)
has image stabilization (Sensor based)
MP count decent (15MP)
good sensor size (APS-C)
supports RAW formats
weather proofing
tiny screen (2.7 inch)
42
rather wide (25mm)
lovely big screen (3.5")
has image stabilization (Optical)
decent sensor resolution (16 megapixels)
no manual focus
can't change lenses (fixed lens mount)
slow maximum aperture (f3.5)
no manual control
very small sensor size (1/2.3")
no RAW format
does not have Time Lapse function
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Vlogging Comparison

Pentax K20D Vlogging advice
Sony TX100V Vlogging advice
9
can't record video
32
rather wide (25mm)
touch screen
has image stabilization (Optical)
great video quality (1920 x 1080 resolution)
slow maximum aperture (f3.5)
screen is not selfie friendly
does not have external mic jack
heavier than others (147g)
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Pentax K20D vs Sony TX100V Specifications

Detailed spec comparison table for Pentax K20D and Sony TX100V
 Pentax K20DSony Cyber-shot DSC-TX100V
General Information
Brand Name Pentax Sony
Model type Pentax K20D Sony Cyber-shot DSC-TX100V
Category Advanced DSLR Ultracompact
Released 2008-06-25 2011-01-06
Body design Mid-size SLR Ultracompact
Sensor Information
Chip - BIONZ
Sensor type CMOS BSI-CMOS
Sensor size APS-C 1/2.3"
Sensor dimensions 23.4 x 15.6mm 6.17 x 4.55mm
Sensor surface area 365.0mm² 28.1mm²
Sensor resolution 15 megapixel 16 megapixel
Anti alias filter
Aspect ratio 3:2 4:3 and 16:9
Peak resolution 4672 x 3104 4608 x 3456
Highest native ISO 3200 3200
Highest enhanced ISO 6400 -
Min native ISO 100 125
RAW support
Autofocusing
Manual focusing
Touch focus
Continuous autofocus
Single autofocus
Tracking autofocus
Autofocus selectice
Autofocus center weighted
Autofocus multi area
Live view autofocus
Face detection focus
Contract detection focus
Phase detection focus
Total focus points 11 9
Lens
Lens mount type Pentax KAF2 fixed lens
Lens zoom range - 25-100mm (4.0x)
Largest aperture - f/3.5-4.6
Amount of lenses 151 -
Crop factor 1.5 5.8
Screen
Range of screen Fixed Type Fixed Type
Screen diagonal 2.7" 3.5"
Screen resolution 230k dot 1,229k dot
Selfie friendly
Liveview
Touch friendly
Screen technology - XtraFine OLED display with TruBlack technology
Viewfinder Information
Viewfinder Optical (pentaprism) None
Viewfinder coverage 95 percent -
Viewfinder magnification 0.64x -
Features
Minimum shutter speed 30 secs 2 secs
Fastest shutter speed 1/4000 secs 1/1600 secs
Continuous shutter speed 3.0 frames per second 10.0 frames per second
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes -
Change white balance
Image stabilization
Inbuilt flash
Flash distance 13.00 m (at ISO 100) 4.00 m
Flash modes Auto, Red-Eye, Slow, Red-Eye Slow, Rear curtain, wireless Auto, On, Off, Slow Sync
External flash
Auto exposure bracketing
WB bracketing
Fastest flash sync 1/180 secs -
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Supported video resolutions - 1920 x 1080 (60 fps), 1440 x 1080 (30 fps), 1280 x 720 (30 fps), 640 x 480 (30 fps)
Highest video resolution None 1920x1080
Video format - MPEG-4, AVCHD
Mic input
Headphone input
Connectivity
Wireless None Eye-Fi Connected
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None BuiltIn
Physical
Environment seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 800 gr (1.76 pounds) 147 gr (0.32 pounds)
Physical dimensions 142 x 101 x 70mm (5.6" x 4.0" x 2.8") 97 x 59 x 18mm (3.8" x 2.3" x 0.7")
DXO scores
DXO Overall rating 65 not tested
DXO Color Depth rating 22.9 not tested
DXO Dynamic range rating 11.1 not tested
DXO Low light rating 639 not tested
Other
Battery ID D-LI50 NP-BN1
Self timer Yes (2 or 10 sec) Yes (2 or 10 sec, Portrait 1/2)
Time lapse shooting
Storage media SD/MMC/SDHC card SD/SDHC/SDXC/Memory Stick Duo/Memory Stick Pro Duo, Memory Stick Pro-HG Duo
Storage slots One One
Price at release $700 $380