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Olympus E-P3 vs Pentax Q

Portability
86
Imaging
48
Features
60
Overall
52
Olympus PEN E-P3 front
 
Pentax Q front
Portability
93
Imaging
35
Features
47
Overall
39

Olympus E-P3 vs Pentax Q 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
  • Introduced August 2011
  • Old Model is Olympus E-P2
  • Successor is Olympus E-P5
Pentax Q
(Full Review)
  • 12MP - 1/2.3" Sensor
  • 3" Fixed Screen
  • ISO 125 - 6400
  • Sensor based Image Stabilization
  • 1920 x 1080 video
  • Pentax Q Mount
  • 180g - 98 x 57 x 31mm
  • Released June 2011
  • Renewed by Pentax Q10
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Olympus E-P3 vs Pentax Q Overview

In this write-up, we will be reviewing the Olympus E-P3 vs Pentax Q, both Entry-Level Mirrorless digital cameras by competitors Olympus and Pentax. The image resolution of the E-P3 (12MP) and the Q (12MP) is pretty similar but the E-P3 (Four Thirds) and Q (1/2.3") feature different sensor sizes.

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The E-P3 was introduced 2 months later than the Q so they are both of a similar age. Both the cameras offer the identical body type (Rangefinder-style mirrorless).

Before going straight into a step-by-step comparison, below is a brief summary of how the E-P3 scores vs the Q in the way of portability, imaging, features and an overall grade.

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Reasons to pick Olympus E-P3 over the Pentax Q

 E-P3 Q 
Screen resolution614k460kCrisper screen (+154k dot)
Touch friendly screen Quickly navigate

Reasons to pick Pentax Q over the Olympus E-P3

 Q E-P3 

Common features in the Olympus E-P3 and Pentax Q

 E-P3 Q 
ReleasedAugust 2011June 2011Similar age
Focus manually Very exact focus
Screen typeFixed Fixed Fixed screen
Screen sizing3"3"Equivalent screen dimensions
Selfie screen Missing selfie screen

Olympus E-P3 vs Pentax Q Physical Comparison

If you are looking to lug around your camera often, you should think about its weight and measurements. The Olympus E-P3 features outer dimensions of 122mm x 69mm x 34mm (4.8" x 2.7" x 1.3") and a weight of 369 grams (0.81 lbs) while the Pentax Q has proportions of 98mm x 57mm x 31mm (3.9" x 2.2" x 1.2") along with a weight of 180 grams (0.40 lbs).

Examine the Olympus E-P3 vs Pentax Q in our newest Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Bear in mind, the weight of an ILC will change based on the lens you are working with at the time. Here is the front view size comparison of the E-P3 compared to the Q.

Olympus E-P3 vs Pentax Q size comparison

Taking into account size and weight, the portability score of the E-P3 and Q is 86 and 93 respectively.

Olympus E-P3 vs Pentax Q top view buttons comparison

Olympus E-P3 vs Pentax Q Sensor Comparison

In many cases, it is hard to visualize the difference between sensor measurements merely by reviewing a spec sheet. The graphic below may give you a better sense of the sensor dimensions in the E-P3 and Q.

Clearly, both cameras offer the same exact resolution albeit different sensor measurements. The E-P3 has got the bigger sensor which is going to make achieving shallower DOF simpler.

Olympus E-P3 vs Pentax Q sensor size comparison

Olympus E-P3 vs Pentax Q Screen and ViewFinder

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

Portrait Comparison

Olympus E-P3 as a Portrait photography camera
Pentax Q as a Portrait photography camera
60
manual focus
sensor size is nice (Four Thirds)
has face detect autofocus
delivers RAW formats
low resolution (12 megapixels)
45
manual focus
high flash sync speed (1/2,000 seconds)
delivers RAW files
megapixel count low (12 megapixels)
sensor size is tiny (1/2.3")
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Street Comparison

Olympus E-P3 Street photography features
Pentax Q Street photography features
76
has image stabilization (Sensor based)
sensor size is nice (Four Thirds)
delivers RAW formats
supports touch focus
no moving screen
69
image stabilization (Sensor based)
delivers RAW files
lighter than competition (180g)
no moving screen
sensor size is tiny (1/2.3")
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Sports Comparison

Olympus E-P3 Sports photography details
Pentax Q Sports photography details
49
has image stabilization (Sensor based)
sensor size is nice (Four Thirds)
has tracking focus
painfully slow continuous shooting (3.0 frames/s)
low resolution (12 megapixels)
has no phase detect autofocus
31
image stabilization (Sensor based)
has tracking focus
max fps very slow (2.0 frames/s)
megapixel count low (12MP)
sensor size is tiny (1/2.3")
terrible battery life (230 CIPA)
lacks phase detect AF
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Travel Comparison

Olympus E-P3 as a Travel photography camera
Pentax Q as a Travel photography camera
60
supports touch focus
has built in flash
doesn't have Time Lapse recording
low resolution (12 megapixels)
display is not selfie friendly
57
lighter than competition (180g)
flash built-in
lack of Time Lapse function
terrible battery life (230 CIPA)
megapixel count low (12 megapixels)
display isn't selfie friendly
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Landscape Comparison

Olympus E-P3 Landscape photography highlights
Pentax Q Landscape photography highlights
65
manual focus
interchangeable lenses (Micro Four Thirds mount)
good sized screen (3")
has image stabilization (Sensor based)
sensor size is nice (Four Thirds)
delivers RAW formats
low resolution (12 megapixels)
doesn't have Time Lapse recording
51
manual focus
interchangeable lenses (Pentax Q mount)
screen size is good (3")
image stabilization (Sensor based)
delivers RAW files
megapixel count low (12 megapixels)
sensor size is tiny (1/2.3")
terrible battery life (230 per charge)
lack of Time Lapse function
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Vlogging Comparison

Olympus E-P3 Vlogging advice
Pentax Q Vlogging advice
35
touchscreen capability
has image stabilization (Sensor based)
has face detect autofocus
high quality video (1920 x 1080 resolution)
display is not selfie friendly
doesn't have mic support
34
image stabilization (Sensor based)
high res video (1920 x 1080 pxls)
lighter than competition (180 grams)
display isn't selfie friendly
lack of mic port
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Olympus E-P3 vs Pentax Q Specifications

Detailed spec comparison table for Olympus E-P3 and Pentax Q
 Olympus PEN E-P3Pentax Q
General Information
Brand Olympus Pentax
Model Olympus PEN E-P3 Pentax Q
Category Entry-Level Mirrorless Entry-Level Mirrorless
Introduced 2011-08-17 2011-06-23
Body design Rangefinder-style mirrorless Rangefinder-style mirrorless
Sensor Information
Processor TruePic VI -
Sensor type CMOS CMOS
Sensor size Four Thirds 1/2.3"
Sensor dimensions 17.3 x 13mm 6.17 x 4.55mm
Sensor surface area 224.9mm² 28.1mm²
Sensor resolution 12 megapixels 12 megapixels
Anti aliasing filter
Aspect ratio 4:3 1:1, 4:3, 3:2 and 16:9
Max resolution 4032 x 3024 4000 x 3000
Max native ISO 12800 6400
Minimum native ISO 100 125
RAW images
Autofocusing
Focus manually
Autofocus touch
Autofocus continuous
Autofocus single
Autofocus tracking
Selective autofocus
Autofocus center weighted
Multi area autofocus
Autofocus live view
Face detect focus
Contract detect focus
Phase detect focus
Number of focus points 35 25
Lens
Lens mounting type Micro Four Thirds Pentax Q
Available lenses 107 8
Focal length multiplier 2.1 5.8
Screen
Display type Fixed Type Fixed Type
Display size 3 inch 3 inch
Resolution of display 614 thousand dot 460 thousand dot
Selfie friendly
Liveview
Touch screen
Display technology 3:2 OLED with Anti-Fingerprint Coating TFT Color LCD
Viewfinder Information
Viewfinder Electronic (optional) None
Features
Minimum shutter speed 60 secs 30 secs
Fastest shutter speed 1/4000 secs 1/2000 secs
Continuous shutter speed 3.0 frames per second 2.0 frames per second
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Set white balance
Image stabilization
Inbuilt flash
Flash range 10.00 m (@ ISO 200) 5.60 m
Flash options Auto, On, Off, Red-Eye, Fill-in, Slow Sync, Wireless, Manual (3 levels) Auto, On, Off, Red-Eye, Slow Sync, Trailing-curtain sync
External flash
AEB
WB bracketing
Fastest flash sync 1/180 secs 1/2000 secs
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Supported video resolutions 1920 x 1080 (60 fps), 1280 x 720 (60, 30 fps), 640 x 480 (30 fps) 1920 x 1080 (30 fps), 1280 x 720p (30 fps), 640 x 480 (30 fps), 320 x 240 (30 fps)
Max video resolution 1920x1080 1920x1080
Video file format AVCHD, Motion JPEG MPEG-4, H.264
Mic 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 proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 369 grams (0.81 pounds) 180 grams (0.40 pounds)
Dimensions 122 x 69 x 34mm (4.8" x 2.7" x 1.3") 98 x 57 x 31mm (3.9" x 2.2" x 1.2")
DXO scores
DXO Overall score 51 47
DXO Color Depth score 20.8 20.2
DXO Dynamic range score 10.1 11.1
DXO Low light score 536 189
Other
Battery life 330 photos 230 photos
Style of battery Battery Pack Battery Pack
Battery model BLS-5 D-LI68
Self timer Yes (2 or 12 sec) Yes (2 or 12 sec)
Time lapse shooting
Storage media SD/SDHC/SDXC card SD/SDHC/SDXC
Storage slots Single Single
Cost at release $0 $695