Pentax K-3 vs Sigma SD10

Pentax K-3 front
Sigma SD10 front

Pentax K-3 vs Sigma SD10 Key Specs

Pentax K-3
(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
  • Announced April 2014
  • New Model is Pentax K-3 II
Sigma SD10
(Full Review)
  • 3MP - APS-C Sensor
  • 1.8" Fixed Display
  • ISO 100 - 800 (Expand to 1600)
  • 1/6000s Max Shutter
  • No Video
  • Sigma SA Mount
  • 950g - 152 x 120 x 79mm
  • Revealed March 2004
  • Replaced the Sigma SD9
  • Refreshed by Sigma SD14
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Pentax K-3 vs Sigma SD10 Overview

Below is a thorough analysis of the Pentax K-3 vs Sigma SD10, both Advanced DSLR digital cameras by companies Pentax and Sigma. There is a big difference between the image resolutions of the K-3 (24MP) and SD10 (3MP) but both cameras posses the identical sensor sizing (APS-C).

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The K-3 was released 10 years later than the SD10 and that is quite a big gap as far as tech is concerned. Each of these cameras feature the same body design (Mid-size SLR).

Before diving into a in-depth comparison, here is a concise view of how the K-3 matches up against the SD10 when it comes to portability, imaging, features and an overall grade.

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Reasons to pick Pentax K-3 over the Sigma SD10

 K-3 SD10 
RevealedApril 2014March 2004More recent by 123 months
Display size3.2"1.8"Larger display (+1.4")
Display resolution1037k130kCrisper display (+907k dot)

Reasons to pick Sigma SD10 over the Pentax K-3

 SD10 K-3 

Common features in the Pentax K-3 and Sigma SD10

 K-3 SD10 
Focus manually More accurate focusing
Display typeFixed Fixed Fixed display
Selfie screen Neither contains selfie screen
Touch friendly display Missing Touch friendly display

Pentax K-3 vs Sigma SD10 Physical Comparison

If you're looking to lug around your camera frequently, you need to factor in its weight and dimensions. The Pentax K-3 has got physical measurements of 131mm x 100mm x 77mm (5.2" x 3.9" x 3.0") and a weight of 800 grams (1.76 lbs) and the Sigma SD10 has dimensions of 152mm x 120mm x 79mm (6.0" x 4.7" x 3.1") with a weight of 950 grams (2.09 lbs).

Analyze the Pentax K-3 vs Sigma SD10 in the all new Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Remember, the weight of an Interchangeable Lens Camera will differ depending on the lens you are working with at that moment. Following is a front view dimensions comparison of the K-3 vs the SD10.

Pentax K-3 vs Sigma SD10 size comparison

Taking into consideration size and weight, the portability grade of the K-3 and SD10 is 59 and 54 respectively.

Pentax K-3 vs Sigma SD10 top view buttons comparison

Pentax K-3 vs Sigma SD10 Sensor Comparison

In many cases, it can be difficult to envision the gap between sensor measurements just by reading through specs. The photograph below will offer you a far better sense of the sensor sizing in the K-3 and SD10.

As you can plainly see, both cameras come with the identical sensor size but not the same megapixels. You should anticipate the Pentax K-3 to resolve extra detail as a result of its extra 21 Megapixels. Greater resolution will let you crop photos a good deal more aggressively. The more recent K-3 is going to have an edge with regard to sensor technology.

Pentax K-3 vs Sigma SD10 sensor size comparison

Pentax K-3 vs Sigma SD10 Screen and ViewFinder

Pentax K-3 vs Sigma SD10 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Portrait photography with Pentax K-3
Portrait photography with Sigma SD10
focusing manually
MP count good (24 megapixels)
sensor size is decent (APS-C)
comes with face detection autofocus
supports RAW formats
focusing manually
decent sensor size (APS-C)
exports RAW formats
no liveview feature
megapixel count low (3 megapixels)
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Street Comparison

Pentax K-3 Street photography highlights
Sigma SD10 Street photography highlights
has image stabilization (Sensor based)
sensor size is decent (APS-C)
supports RAW formats
weather sealing
great ISO range (51,200)
screen does not articulate
decent sensor size (APS-C)
exports RAW formats
fixed screen
does not have image stabilization
more heavy than others (950g)
low max ISO (800)
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Sports Comparison

Pentax K-3 Sports photography details
Sigma SD10 Sports photography details
maximum shutter speed is high (1/8,000s)
has image stabilization (Sensor based)
MP count good (24MP)
sensor size is decent (APS-C)
comes with tracking autofocus
weather sealing
supports phase detect autofocus
not so great battery pack (560 shots)
great max shutter speed (1/6,000 seconds)
decent sensor size (APS-C)
no liveview feature
does not have image stabilization
megapixel count low (3MP)
has no phase detect AF
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Travel Comparison

Pentax K-3 Travel photography factors
Sigma SD10 Travel photography factors
weather sealing
MP count good (24 megapixels)
built-in flash
not so great battery pack (560 per charge)
does not posses selfie friendly display
lack of Timelapse function
more heavy than others (950 grams)
megapixel count low (3MP)
display is not selfie friendly
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Landscape Comparison

Pentax K-3 Landscape photography factors
Sigma SD10 Landscape photography factors
focusing manually
interchangeable lenses (Pentax KAF2 mount)
screen is a good size (3.2")
has image stabilization (Sensor based)
MP count good (24 megapixels)
sensor size is decent (APS-C)
does not have anti-alias filter
great ISO range (51,200)
supports RAW formats
weather sealing
2 card slots
not so great battery pack (560 CIPA)
focusing manually
interchangeable lenses (Sigma SA mount)
decent sensor size (APS-C)
exports RAW formats
tiny screen (1.8")
no liveview feature
does not have image stabilization
megapixel count low (3MP)
low max ISO (800)
lack of Timelapse function
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Vlogging Comparison

Pentax K-3 Vlogging factors
Sigma SD10 Vlogging factors
has image stabilization (Sensor based)
comes with face detection autofocus
high quality video (1920 x 1080 resolution)
comes with external mic support
does not posses selfie friendly display
can't record video
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Pentax K-3 vs Sigma SD10 Specifications

Detailed spec comparison table for Pentax K-3 and Sigma SD10
 Pentax K-3Sigma SD10
General Information
Manufacturer Pentax Sigma
Model type Pentax K-3 Sigma SD10
Category Advanced DSLR Advanced DSLR
Announced 2014-04-10 2004-03-19
Body design Mid-size SLR Mid-size SLR
Sensor Information
Chip Prime III -
Sensor type CMOS CMOS (Foveon X3)
Sensor size APS-C APS-C
Sensor measurements 23.5 x 15.6mm 20.7 x 13.8mm
Sensor surface area 366.6mm² 285.7mm²
Sensor resolution 24MP 3MP
Anti alias filter
Aspect ratio 3:2 3:2
Full resolution 6016 x 4000 2268 x 1512
Max native ISO 51200 800
Max boosted ISO - 1600
Lowest native ISO 100 100
RAW format
Focus manually
AF touch
Continuous AF
AF single
AF tracking
AF selectice
Center weighted AF
AF multi area
Live view AF
Face detect AF
Contract detect AF
Phase detect AF
Total focus points 27 -
Cross type focus points 25 -
Lens support Pentax KAF2 Sigma SA
Amount of lenses 151 76
Focal length multiplier 1.5 1.7
Range of display Fixed Type Fixed Type
Display size 3.2 inch 1.8 inch
Display resolution 1,037 thousand dot 130 thousand dot
Selfie friendly
Touch operation
Display tech TFT LCD monitor -
Viewfinder Information
Viewfinder Optical (pentaprism) Optical (pentaprism)
Viewfinder coverage 100% 98%
Viewfinder magnification 0.64x 0.77x
Lowest shutter speed 30s 30s
Highest shutter speed 1/8000s 1/6000s
Continuous shooting speed 8.0 frames per second -
Shutter priority
Aperture priority
Manual exposure
Exposure compensation Yes Yes
Custom WB
Image stabilization
Integrated flash
Flash distance 13.00 m (at ISO 100) no built-in flash
Flash settings Auto, on, off, red-eye, slow sync, slow sync + red-eye, trailing curtain sync, high speed, wireless, manual -
External flash
White balance bracketing
Highest flash sync 1/180s 1/180s
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Video resolutions 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p, 30p, 25p, 24p) -
Max video resolution 1920x1080 None
Video format MPEG-4, H.264 -
Microphone jack
Headphone jack
Wireless None None
USB USB 3.0 (5 GBit/sec) USB 1.0 (1.5 Mbit/sec)
GPS Optional None
Environmental seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 800 grams (1.76 lbs) 950 grams (2.09 lbs)
Physical dimensions 131 x 100 x 77mm (5.2" x 3.9" x 3.0") 152 x 120 x 79mm (6.0" x 4.7" x 3.1")
DXO scores
DXO All around rating 80 not tested
DXO Color Depth rating 23.7 not tested
DXO Dynamic range rating 13.4 not tested
DXO Low light rating 1216 not tested
Battery life 560 shots -
Type of battery Battery Pack -
Battery ID D-LI90 -
Self timer Yes ( 2 or 12 seconds) Yes (10 sec)
Time lapse feature
Type of storage Dual SD/SDHC/SDXC Compact Flash Type I or II
Storage slots 2 1
Retail pricing $639 $198