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Olympus E-P3 vs Pentax K10D

Portability
86
Imaging
48
Features
60
Overall
52
Olympus PEN E-P3 front
 
Pentax K10D front
Portability
59
Imaging
48
Features
43
Overall
46

Olympus E-P3 vs Pentax K10D Key Specs

Olympus E-P3
(Full Review)
  • 12MP - Four Thirds Sensor
  • 3" Fixed Display
  • ISO 100 - 12800
  • Sensor based Image Stabilization
  • 1920 x 1080 video
  • Micro Four Thirds Mount
  • 369g - 122 x 69 x 34mm
  • Launched August 2011
  • Earlier Model is Olympus E-P2
  • Newer Model is Olympus E-P5
Pentax K10D
(Full Review)
  • 10MP - APS-C Sensor
  • 2.5" Fixed Display
  • ISO 100 - 1600
  • Sensor based Image Stabilization
  • No Video
  • Pentax KAF2 Mount
  • 793g - 142 x 101 x 70mm
  • Introduced December 2006
  • Renewed by Pentax K20D
Photography Glossary

Olympus E-P3 vs Pentax K10D Overview

Lets look more in depth at the Olympus E-P3 and Pentax K10D, one is a Entry-Level Mirrorless and the other is a Advanced DSLR by competitors Olympus and Pentax. The resolution of the E-P3 (12MP) and the K10D (10MP) is fairly close but the E-P3 (Four Thirds) and K10D (APS-C) boast different sensor measurements.

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The E-P3 was released 4 years after the K10D which is a fairly big gap as far as camera tech is concerned. Both of the cameras feature different body design with the Olympus E-P3 being a Rangefinder-style mirrorless camera and the Pentax K10D being a Mid-size SLR camera.

Before getting right into a detailed comparison, here is a quick view of how the E-P3 scores against the K10D with regard to portability, imaging, features and an overall score.

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Reasons to pick Olympus E-P3 over the Pentax K10D

 E-P3 K10D 
IntroducedAugust 2011December 2006More modern by 57 months
Display size3"2.5"Larger display (+0.5")
Display resolution614k210kCrisper display (+404k dot)
Touch display Easily navigate

Reasons to pick Pentax K10D over the Olympus E-P3

 K10D E-P3 

Common features in the Olympus E-P3 and Pentax K10D

 E-P3 K10D 
Manually focus More exact focusing
Display typeFixed Fixed Fixed display
Selfie screen No selfie screen

Olympus E-P3 vs Pentax K10D Physical Comparison

If you are intending to carry around your camera regularly, you will need to take into account its weight and dimensions. The Olympus E-P3 provides outside dimensions of 122mm x 69mm x 34mm (4.8" x 2.7" x 1.3") accompanied by a weight of 369 grams (0.81 lbs) whilst the Pentax K10D has dimensions of 142mm x 101mm x 70mm (5.6" x 4.0" x 2.8") with a weight of 793 grams (1.75 lbs).

Analyze the Olympus E-P3 and Pentax K10D in the new Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Always remember, the weight of an Interchangeable Lens Camera will vary based on the lens you are utilizing at that moment. The following is a front view dimension comparison of the E-P3 against the K10D.

Olympus E-P3 vs Pentax K10D size comparison

Taking into account size and weight, the portability score of the E-P3 and K10D is 86 and 59 respectively.

Olympus E-P3 vs Pentax K10D top view buttons comparison

Olympus E-P3 vs Pentax K10D Sensor Comparison

Often, it's difficult to visualize the contrast in sensor sizes just by researching technical specs. The picture below might offer you a far better sense of the sensor sizes in the E-P3 and K10D.

As you have seen, both the cameras feature different megapixel count and different sensor sizes. The E-P3 due to its smaller sensor is going to make shooting shallower DOF tougher and the Olympus E-P3 will render extra detail as a result of its extra 2MP. Greater resolution can also enable you to crop photos way more aggressively. The younger E-P3 should have an edge when it comes to sensor technology.

Olympus E-P3 vs Pentax K10D sensor size comparison

Olympus E-P3 vs Pentax K10D Screen and ViewFinder

Olympus E-P3 vs Pentax K10D Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus E-P3 Portrait photography details
Pentax K10D Portrait photography details
60
has manual focus
sensor size is good (Four Thirds)
includes face detection focusing
supports RAW formats
sensor resolution low (12 megapixels)
52
you can focus manually
good sensor size (APS-C)
supports RAW formats
no liveview feature
megapixel count low (10 megapixels)
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Street Comparison

Olympus E-P3 Street photography features
Pentax K10D Street photography features
76
has image stabilization (Sensor based)
sensor size is good (Four Thirds)
supports RAW formats
has focus via touch
fixed screen
64
has image stabilization (Sensor based)
good sensor size (APS-C)
supports RAW formats
environment sealing
screen does not articulate
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Sports Comparison

Olympus E-P3 as a Sports photography camera
Pentax K10D as a Sports photography camera
49
has image stabilization (Sensor based)
sensor size is good (Four Thirds)
includes tracking autofocus
slow continuous shooting (3.0 fps)
sensor resolution low (12 megapixels)
lack of phase detect AF
52
has image stabilization (Sensor based)
good sensor size (APS-C)
environment sealing
sensor has phase detect AF
no liveview feature
continuous shooting slow (3.0 frames per second)
megapixel count low (10MP)
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Travel Comparison

Olympus E-P3 Travel photography info
Pentax K10D Travel photography info
60
has focus via touch
has built in flash
does not have Timelapse function
sensor resolution low (12MP)
does not contain selfie friendly display
49
environment sealing
flash built-in
no Timelapse mode
megapixel count low (10 megapixels)
does not have selfie friendly display
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Landscape Comparison

Landscape photography with Olympus E-P3
Landscape photography with Pentax K10D
65
has manual focus
switch lenses (Micro Four Thirds mount)
screen size is good (3")
has image stabilization (Sensor based)
sensor size is good (Four Thirds)
supports RAW formats
sensor resolution low (12MP)
does not have Timelapse function
55
you can focus manually
switch lenses (Pentax KAF2 mount)
has image stabilization (Sensor based)
good sensor size (APS-C)
supports RAW formats
environment sealing
small screen (2.5 inch)
no liveview feature
megapixel count low (10 megapixels)
no Timelapse mode
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Vlogging Comparison

Olympus E-P3 Vlogging advice
Pentax K10D Vlogging advice
35
screen is touchscreen
has image stabilization (Sensor based)
includes face detection focusing
video resolution high (1920 x 1080 pxls)
does not contain selfie friendly display
does not have external microphone jack
9
can't shoot video
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Olympus E-P3 vs Pentax K10D Specifications

Detailed spec comparison table for Olympus E-P3 and Pentax K10D
 Olympus PEN E-P3Pentax K10D
General Information
Company Olympus Pentax
Model type Olympus PEN E-P3 Pentax K10D
Category Entry-Level Mirrorless Advanced DSLR
Launched 2011-08-17 2006-12-15
Body design Rangefinder-style mirrorless Mid-size SLR
Sensor Information
Processor Chip TruePic VI -
Sensor type CMOS CCD
Sensor size Four Thirds APS-C
Sensor measurements 17.3 x 13mm 23.5 x 15.7mm
Sensor surface area 224.9mm² 369.0mm²
Sensor resolution 12 megapixels 10 megapixels
Anti alias filter
Aspect ratio 4:3 3:2
Peak resolution 4032 x 3024 3872 x 2592
Highest native ISO 12800 1600
Minimum native ISO 100 100
RAW support
Autofocusing
Focus manually
AF touch
AF continuous
Single AF
AF tracking
AF selectice
Center weighted AF
Multi area AF
Live view AF
Face detect AF
Contract detect AF
Phase detect AF
Total focus points 35 11
Lens
Lens mount type Micro Four Thirds Pentax KAF2
Total lenses 107 151
Focal length multiplier 2.1 1.5
Screen
Range of display Fixed Type Fixed Type
Display sizing 3 inch 2.5 inch
Display resolution 614 thousand dot 210 thousand dot
Selfie friendly
Liveview
Touch functionality
Display tech 3:2 OLED with Anti-Fingerprint Coating -
Viewfinder Information
Viewfinder Electronic (optional) Optical (pentaprism)
Viewfinder coverage - 95%
Viewfinder magnification - 0.64x
Features
Min shutter speed 60 secs 30 secs
Max shutter speed 1/4000 secs 1/4000 secs
Continuous shutter speed 3.0 frames/s 3.0 frames/s
Shutter priority
Aperture priority
Manual exposure
Exposure compensation Yes Yes
Set WB
Image stabilization
Inbuilt flash
Flash distance 10.00 m (@ ISO 200) -
Flash options Auto, On, Off, Red-Eye, Fill-in, Slow Sync, Wireless, Manual (3 levels) Auto, On, Off, Red-eye, Auto Red Eye
Hot shoe
AEB
WB bracketing
Max flash sync 1/180 secs 1/180 secs
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Video resolutions 1920 x 1080 (60 fps), 1280 x 720 (60, 30 fps), 640 x 480 (30 fps) -
Highest video resolution 1920x1080 None
Video format AVCHD, Motion JPEG -
Microphone jack
Headphone jack
Connectivity
Wireless None None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environmental seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 369 grams (0.81 lb) 793 grams (1.75 lb)
Physical dimensions 122 x 69 x 34mm (4.8" x 2.7" x 1.3") 142 x 101 x 70mm (5.6" x 4.0" x 2.8")
DXO scores
DXO Overall rating 51 66
DXO Color Depth rating 20.8 22.7
DXO Dynamic range rating 10.1 11.6
DXO Low light rating 536 522
Other
Battery life 330 photographs -
Battery form Battery Pack -
Battery ID BLS-5 -
Self timer Yes (2 or 12 sec) Yes (2 or 12 sec)
Time lapse shooting
Type of storage SD/SDHC/SDXC card SD/MMC/SDHC card
Storage slots 1 1
Retail cost $0 $700