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Olympus E-P1 vs Pentax K-x

Portability
86
Imaging
47
Features
42
Overall
45
Olympus PEN E-P1 front
 
Pentax K-x front
Portability
69
Imaging
52
Features
47
Overall
50

Olympus E-P1 vs Pentax K-x Key Specs

Olympus E-P1
(Full Review)
  • 12MP - Four Thirds Sensor
  • 3" Fixed Screen
  • ISO 100 - 6400
  • Sensor based Image Stabilization
  • 1280 x 720 video
  • Micro Four Thirds Mount
  • 355g - 121 x 70 x 36mm
  • Introduced July 2009
  • Renewed by Olympus E-P2
Pentax K-x
(Full Review)
  • 12MP - APS-C Sensor
  • 2.7" Fixed Screen
  • ISO 100 - 6400 (Raise to 12800)
  • Sensor based Image Stabilization
  • 1/6000s Max Shutter
  • 1280 x 720 video
  • Pentax KAF2 Mount
  • 580g - 123 x 92 x 68mm
  • Launched December 2009
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Olympus E-P1 vs Pentax K-x Overview

Following is a in-depth assessment of the Olympus E-P1 and Pentax K-x, one is a Entry-Level Mirrorless and the latter is a Entry-Level DSLR by manufacturers Olympus and Pentax. The resolution of the E-P1 (12MP) and the K-x (12MP) is pretty comparable but the E-P1 (Four Thirds) and K-x (APS-C) posses totally different sensor measurements.

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The E-P1 was unveiled 4 months prior to the K-x so they are of a similar generation. The two cameras have different body design with the Olympus E-P1 being a Rangefinder-style mirrorless camera and the Pentax K-x being a Compact SLR camera.

Before going straight to a comprehensive comparison, here is a brief synopsis of how the E-P1 scores against the K-x in the way of portability, imaging, features and an overall score.

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Reasons to pick Olympus E-P1 over the Pentax K-x

 E-P1 K-x 
Screen dimensions3"2.7"Bigger screen (+0.3")

Reasons to pick Pentax K-x over the Olympus E-P1

 K-x E-P1 

Common features in the Olympus E-P1 and Pentax K-x

 E-P1 K-x 
LaunchedJuly 2009December 2009Same generation
Manually focus Dial accurate focus
Screen typeFixed Fixed Fixed screen
Screen resolution230k230kExact same screen resolution
Selfie screen Neither contains selfie screen
Touch screen Neither contains Touch screen

Olympus E-P1 vs Pentax K-x Physical Comparison

For anyone who is planning to carry around your camera regularly, you will have to factor in its weight and measurements. The Olympus E-P1 has got outside dimensions of 121mm x 70mm x 36mm (4.8" x 2.8" x 1.4") having a weight of 355 grams (0.78 lbs) whilst the Pentax K-x has proportions of 123mm x 92mm x 68mm (4.8" x 3.6" x 2.7") having a weight of 580 grams (1.28 lbs).

See the Olympus E-P1 and Pentax K-x in the latest Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Do not forget, the weight of an Interchangeable Lens Camera will change dependant on the lens you select at that moment. Here is a front view size comparison of the E-P1 and the K-x.

Olympus E-P1 vs Pentax K-x size comparison

Factoring in dimensions and weight, the portability score of the E-P1 and K-x is 86 and 69 respectively.

Olympus E-P1 vs Pentax K-x top view buttons comparison

Olympus E-P1 vs Pentax K-x Sensor Comparison

More often than not, its difficult to see the gap in sensor sizes only by seeing specifications. The picture underneath will help provide you a more clear sense of the sensor sizes in the E-P1 and K-x.

To sum up, both of these cameras have the same megapixels albeit not the same sensor sizes. The E-P1 uses the smaller sensor which should make getting shallower DOF more difficult.

Olympus E-P1 vs Pentax K-x sensor size comparison

Olympus E-P1 vs Pentax K-x Screen and ViewFinder

Olympus E-P1 vs Pentax K-x Screen and Viewfinder comparison
Photography Glossary

Photography Type Scores

Portrait Comparison

Portrait photography with Olympus E-P1
Portrait photography with Pentax K-x
60
you can focus manually
sensor size is good (Four Thirds)
comes with face detect focus
supports RAW files
low megapixels (12MP)
63
focusing manually
good sensor size (APS-C)
provides face detection autofocus
supports RAW files
megapixel count low (12 megapixels)
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Street Comparison

Olympus E-P1 Street photography advice
Pentax K-x Street photography advice
74
built in image stabilization (Sensor based)
sensor size is good (Four Thirds)
supports RAW files
no moving screen
67
has image stabilization (Sensor based)
good sensor size (APS-C)
supports RAW files
fixed screen
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Sports Comparison

Sports photography with Olympus E-P1
Sports photography with Pentax K-x
40
built in image stabilization (Sensor based)
sensor size is good (Four Thirds)
low frames per second (3.0 frames per second)
low megapixels (12MP)
bad battery pack (300 CIPA)
no phase detect auto focus
61
great max shutter speed (1/6,000 seconds)
has image stabilization (Sensor based)
good sensor size (APS-C)
good battery pack (1,900 per charge)
supports phase detect autofocus
slow frames per second (5.0 frames per second)
megapixel count low (12 megapixels)
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Travel Comparison

Olympus E-P1 as a Travel photography camera
Pentax K-x as a Travel photography camera
43
no Timelapse recording
bad battery pack (300 shots)
low megapixels (12 megapixels)
display isn't selfie friendly
54
good battery pack (1,900 per charge)
flash built-in
does not have Time Lapse mode
megapixel count low (12 megapixels)
does not feature selfie friendly screen
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Landscape Comparison

Olympus E-P1 Landscape photography details
Pentax K-x Landscape photography details
60
you can focus manually
switch lenses (Micro Four Thirds mount)
screen size is good (3 inches)
built in image stabilization (Sensor based)
sensor size is good (Four Thirds)
supports RAW files
low megapixels (12MP)
bad battery pack (300 CIPA)
no Timelapse recording
61
focusing manually
change lenses (Pentax KAF2 mount)
has image stabilization (Sensor based)
good sensor size (APS-C)
supports RAW files
good battery pack (1,900 shots)
small screen (2.7")
megapixel count low (12MP)
does not have Time Lapse mode
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Vlogging Comparison

Olympus E-P1 Vlogging advice
Pentax K-x Vlogging advice
29
built in image stabilization (Sensor based)
comes with face detect focus
display isn't selfie friendly
video resolution low (1280 x 720 pxls)
no microphone support
27
has image stabilization (Sensor based)
provides face detection autofocus
does not feature selfie friendly screen
low video resolution (1280 x 720 pixels)
does not have external mic port
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Olympus E-P1 vs Pentax K-x Specifications

Detailed spec comparison table for Olympus E-P1 and Pentax K-x
 Olympus PEN E-P1Pentax K-x
General Information
Company Olympus Pentax
Model Olympus PEN E-P1 Pentax K-x
Category Entry-Level Mirrorless Entry-Level DSLR
Introduced 2009-07-29 2009-12-23
Body design Rangefinder-style mirrorless Compact SLR
Sensor Information
Powered by TruePic V Prime
Sensor type CMOS CMOS
Sensor size Four Thirds APS-C
Sensor dimensions 17.3 x 13mm 23.6 x 15.8mm
Sensor surface area 224.9mm² 372.9mm²
Sensor resolution 12 megapixel 12 megapixel
Anti aliasing filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2
Peak resolution 4032 x 3024 4288 x 2848
Highest native ISO 6400 6400
Highest enhanced ISO - 12800
Lowest native ISO 100 100
RAW files
Autofocusing
Focus manually
Autofocus touch
Continuous autofocus
Single autofocus
Tracking autofocus
Autofocus selectice
Center weighted autofocus
Autofocus multi area
Live view autofocus
Face detection autofocus
Contract detection autofocus
Phase detection autofocus
Number of focus points 11 11
Lens
Lens mounting type Micro Four Thirds Pentax KAF2
Number of lenses 107 151
Focal length multiplier 2.1 1.5
Screen
Screen type Fixed Type Fixed Type
Screen sizing 3" 2.7"
Resolution of screen 230k dot 230k dot
Selfie friendly
Liveview
Touch function
Screen technology HyperCrystal LCD with AR(Anti-Reflective) coating TFT LCD monitor
Viewfinder Information
Viewfinder None Optical (pentamirror)
Viewfinder coverage - 96 percent
Viewfinder magnification - 0.57x
Features
Min shutter speed 60s 30s
Max shutter speed 1/4000s 1/6000s
Continuous shutter speed 3.0 frames per sec 5.0 frames per sec
Shutter priority
Aperture priority
Manual exposure
Exposure compensation Yes Yes
Set white balance
Image stabilization
Built-in flash
Flash range no built-in flash 16.00 m
Flash settings Auto, On, Off, Red-Eye, Fill-in, Slow Sync, Manual (3 levels) Auto, On, Off, Red-Eye, Slow Sync, Rear curtain, Wireless
External flash
AEB
White balance bracketing
Max flash sync 1/180s 1/180s
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Video resolutions 1280 x 720 (30 fps), 640 x 480 (30 fps) 1280 x 720 (24 fps), 640 x 416 (24 fps)
Highest video resolution 1280x720 1280x720
Video data format Motion JPEG Motion JPEG
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 355 gr (0.78 lb) 580 gr (1.28 lb)
Physical dimensions 121 x 70 x 36mm (4.8" x 2.8" x 1.4") 123 x 92 x 68mm (4.8" x 3.6" x 2.7")
DXO scores
DXO Overall score 55 72
DXO Color Depth score 21.4 22.8
DXO Dynamic range score 10.4 12.5
DXO Low light score 536 811
Other
Battery life 300 images 1900 images
Type of battery Battery Pack Battery Pack
Battery model BLS-1 4 x AA
Self timer Yes (2 or 12 sec) Yes (2 or 12 sec)
Time lapse recording
Type of storage SD/SDHC card SD/SDHC card
Storage slots One One
Launch pricing $182 $600