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Pentax K20D vs Sigma SD10

Portability
59
Imaging
54
Features
52
Overall
53
Pentax K20D front
 
Sigma SD10 front
Portability
54
Imaging
39
Features
27
Overall
34

Pentax K20D vs Sigma SD10 Key Specs

Pentax K20D
(Full Review)
  • 15MP - APS-C Sensor
  • 2.7" Fixed Screen
  • ISO 100 - 3200 (Increase to 6400)
  • Sensor based Image Stabilization
  • No Video
  • Pentax KAF2 Mount
  • 800g - 142 x 101 x 70mm
  • Released June 2008
  • Earlier Model is Pentax K10D
Sigma SD10
(Full Review)
  • 3MP - APS-C Sensor
  • 1.8" Fixed Display
  • ISO 100 - 800 (Increase to 1600)
  • 1/6000s Maximum Shutter
  • No Video
  • Sigma SA Mount
  • 950g - 152 x 120 x 79mm
  • Released March 2004
  • Earlier Model is Sigma SD9
  • Newer Model is Sigma SD14
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Pentax K20D vs Sigma SD10 Overview

Its time to look a little more closely at the Pentax K20D and Sigma SD10, both Advanced DSLR digital cameras by competitors Pentax and Sigma. There is a noticeable difference between the image resolutions of the K20D (15MP) and SD10 (3MP) but both cameras boast the same sensor sizes (APS-C).

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The K20D was introduced 4 years later than the SD10 and that is quite a sizable difference as far as tech is concerned. Each of the cameras have the same body design (Mid-size SLR).

Before diving right into a in-depth comparison, here is a quick view of how the K20D scores against the SD10 when considering portability, imaging, features and an overall grade.

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Reasons to pick Pentax K20D over the Sigma SD10

 K20D SD10 
ReleasedJune 2008March 2004More recent by 52 months
Display dimensions2.7"1.8"Larger display (+0.9")
Display resolution230k130kSharper display (+100k dot)

Reasons to pick Sigma SD10 over the Pentax K20D

 SD10 K20D 

Common features in the Pentax K20D and Sigma SD10

 K20D SD10 
Focus manually Dial exact focus
Display typeFixed Fixed Fixed display
Selfie screen Neither contains selfie screen
Touch display Neither contains Touch display

Pentax K20D vs Sigma SD10 Physical Comparison

For those who are intending to lug around your camera, you'll have to factor its weight and measurements. The Pentax K20D has got outer dimensions of 142mm x 101mm x 70mm (5.6" x 4.0" x 2.8") having a weight of 800 grams (1.76 lbs) while the Sigma SD10 has proportions of 152mm x 120mm x 79mm (6.0" x 4.7" x 3.1") accompanied by a weight of 950 grams (2.09 lbs).

Take a look at the Pentax K20D and Sigma SD10 in our newest Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Bear in mind, the weight of an ILC will vary dependant on the lens you have attached at that moment. Here is a front view measurement comparison of the K20D and the SD10.

Pentax K20D vs Sigma SD10 size comparison

Using size and weight, the portability grade of the K20D and SD10 is 59 and 54 respectively.

Pentax K20D vs Sigma SD10 top view buttons comparison

Pentax K20D vs Sigma SD10 Sensor Comparison

In many cases, it's tough to envision the difference between sensor measurements merely by reading technical specs. The graphic below will help give you a better sense of the sensor dimensions in the K20D and SD10.

As you have seen, the 2 cameras provide the same sensor dimensions but not the same resolution. You can anticipate the Pentax K20D to offer greater detail using its extra 12 Megapixels. Greater resolution will also let you crop pics more aggressively. The newer K20D will have an edge in sensor technology.

Pentax K20D vs Sigma SD10 sensor size comparison

Pentax K20D vs Sigma SD10 Screen and ViewFinder

Pentax K20D vs Sigma SD10 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax K20D Portrait photography info
Sigma SD10 Portrait photography info
72
manual focus
resolution is good (15MP)
decent sensor size (APS-C)
exports RAW formats
47
you can focus manually
sensor size is decent (APS-C)
supports RAW formats
does not have liveview
low resolution sensor (3MP)
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Street Comparison

Street photography with Pentax K20D
Street photography with Sigma SD10
65
built in image stabilization (Sensor based)
decent sensor size (APS-C)
exports RAW formats
environment proofing
screen is fixed
43
sensor size is decent (APS-C)
supports RAW formats
no articulating screen
does not have image stabilization
more heavy than competitors in class (950g)
low maximum ISO (800)
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Sports Comparison

Pentax K20D Sports photography features
Sigma SD10 Sports photography features
68
built in image stabilization (Sensor based)
resolution is good (15MP)
decent sensor size (APS-C)
environment proofing
sensor has phase detect autofocus
max frames per second low (3.0 frames per second)
36
maximum shutter speed is high (1/6,000s)
sensor size is decent (APS-C)
does not have liveview
does not have image stabilization
low resolution sensor (3 megapixels)
does not have phase detect autofocus
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Travel Comparison

Pentax K20D Travel photography info
Sigma SD10 Travel photography info
64
environment proofing
resolution is good (15 megapixels)
flash built-in
display is not selfie friendly
29
does not have Timelapse function
more heavy than competitors in class (950 grams)
low resolution sensor (3MP)
screen is not selfie friendly
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Landscape Comparison

Pentax K20D Landscape photography factors
Sigma SD10 Landscape photography factors
71
manual focus
interchangeable lenses (Pentax KAF2 mount)
built in image stabilization (Sensor based)
resolution is good (15MP)
decent sensor size (APS-C)
exports RAW formats
environment proofing
tiny screen (2.7 inch)
41
you can focus manually
change lenses (Sigma SA mount)
sensor size is decent (APS-C)
supports RAW formats
screen is small (1.8 inches)
does not have liveview
does not have image stabilization
low resolution sensor (3MP)
low maximum ISO (800)
does not have Timelapse function
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Vlogging Comparison

Pentax K20D Vlogging features
Sigma SD10 Vlogging features
9
no video recording
9
no video shooting
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Pentax K20D vs Sigma SD10 Specifications

Detailed spec comparison table for Pentax K20D and Sigma SD10
 Pentax K20DSigma SD10
General Information
Make Pentax Sigma
Model type Pentax K20D Sigma SD10
Category Advanced DSLR Advanced DSLR
Released 2008-06-25 2004-03-19
Physical type Mid-size SLR Mid-size SLR
Sensor Information
Sensor type CMOS CMOS (Foveon X3)
Sensor size APS-C APS-C
Sensor measurements 23.4 x 15.6mm 20.7 x 13.8mm
Sensor area 365.0mm² 285.7mm²
Sensor resolution 15 megapixel 3 megapixel
Anti alias filter
Aspect ratio 3:2 3:2
Max resolution 4672 x 3104 2268 x 1512
Max native ISO 3200 800
Max enhanced ISO 6400 1600
Min native ISO 100 100
RAW images
Autofocusing
Manual focusing
Touch to focus
Autofocus continuous
Single autofocus
Autofocus tracking
Autofocus selectice
Autofocus center weighted
Multi area autofocus
Live view autofocus
Face detection autofocus
Contract detection autofocus
Phase detection autofocus
Total focus points 11 -
Lens
Lens mount type Pentax KAF2 Sigma SA
Available lenses 151 76
Crop factor 1.5 1.7
Screen
Screen type Fixed Type Fixed Type
Screen sizing 2.7" 1.8"
Resolution of screen 230 thousand dots 130 thousand dots
Selfie friendly
Liveview
Touch functionality
Viewfinder Information
Viewfinder type Optical (pentaprism) Optical (pentaprism)
Viewfinder coverage 95% 98%
Viewfinder magnification 0.64x 0.77x
Features
Min shutter speed 30s 30s
Max shutter speed 1/4000s 1/6000s
Continuous shutter rate 3.0 frames per second -
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Change white balance
Image stabilization
Integrated flash
Flash distance 13.00 m (at ISO 100) no built-in flash
Flash options Auto, Red-Eye, Slow, Red-Eye Slow, Rear curtain, wireless -
External flash
AEB
WB bracketing
Max flash synchronize 1/180s 1/180s
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Max video resolution None None
Microphone port
Headphone port
Connectivity
Wireless None None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 1.0 (1.5 Mbit/sec)
GPS None None
Physical
Environment sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 800 gr (1.76 pounds) 950 gr (2.09 pounds)
Physical dimensions 142 x 101 x 70mm (5.6" x 4.0" x 2.8") 152 x 120 x 79mm (6.0" x 4.7" x 3.1")
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 -
Self timer Yes (2 or 10 sec) Yes (10 sec)
Time lapse recording
Storage type SD/MMC/SDHC card Compact Flash Type I or II
Card slots 1 1
Cost at release $700 $198