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Olympus E-P2 vs Pentax K-S1

Portability
86
Imaging
47
Features
42
Overall
45
Olympus PEN E-P2 front
 
Pentax K-S1 front
Portability
69
Imaging
63
Features
70
Overall
65

Olympus E-P2 vs Pentax K-S1 Key Specs

Olympus E-P2
(Full Review)
  • 12MP - Four Thirds Sensor
  • 3" Fixed Display
  • ISO 100 - 6400
  • Sensor based Image Stabilization
  • 1280 x 720 video
  • Micro Four Thirds Mount
  • 355g - 121 x 70 x 36mm
  • Released April 2010
  • Old Model is Olympus E-P1
  • New Model is Olympus E-P3
Pentax K-S1
(Full Review)
  • 20MP - APS-C Sensor
  • 3" Fixed Screen
  • ISO 100 - 51200
  • Sensor based Image Stabilization
  • No Anti-Alias Filter
  • 1/6000s Max Shutter
  • 1920 x 1080 video
  • Pentax KAF2 Mount
  • 558g - 121 x 93 x 70mm
  • Announced August 2014
  • New Model is Pentax K-S2
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Olympus E-P2 vs Pentax K-S1 Overview

Here is a comprehensive assessment of the Olympus E-P2 vs Pentax K-S1, one being a Entry-Level Mirrorless and the latter is a Advanced DSLR by companies Olympus and Pentax. There is a big difference among the image resolutions of the E-P2 (12MP) and K-S1 (20MP) and the E-P2 (Four Thirds) and K-S1 (APS-C) enjoy different sensor size.

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The E-P2 was announced 5 years before the K-S1 and that is a fairly big gap as far as camera tech is concerned. Each of these cameras offer different body type with the Olympus E-P2 being a Rangefinder-style mirrorless camera and the Pentax K-S1 being a Mid-size SLR camera.

Before delving straight into a in-depth comparison, below is a short summary of how the E-P2 matches up vs the K-S1 in terms of portability, imaging, features and an overall rating.

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Reasons to pick Olympus E-P2 over the Pentax K-S1

 E-P2 K-S1 

Reasons to pick Pentax K-S1 over the Olympus E-P2

 K-S1 E-P2 
AnnouncedAugust 2014April 2010Fresher by 52 months
Screen resolution921k230kCrisper screen (+691k dot)

Common features in the Olympus E-P2 and Pentax K-S1

 E-P2 K-S1 
Manually focus Dial exact focus
Screen typeFixed Fixed Fixed screen
Screen sizing3"3"Equivalent screen size
Selfie screen Neither contains selfie screen
Touch screen Neither contains Touch screen

Olympus E-P2 vs Pentax K-S1 Physical Comparison

When you are planning to carry your camera regularly, you will want to think about its weight and volume. The Olympus E-P2 has got outside dimensions of 121mm x 70mm x 36mm (4.8" x 2.8" x 1.4") accompanied by a weight of 355 grams (0.78 lbs) while the Pentax K-S1 has sizing of 121mm x 93mm x 70mm (4.8" x 3.7" x 2.8") having a weight of 558 grams (1.23 lbs).

Look at the Olympus E-P2 vs Pentax K-S1 in the new Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Keep in mind, the weight of an Interchangeable Lens Camera will differ based on the lens you are utilising at that time. Here is the front view dimension comparison of the E-P2 versus the K-S1.

Olympus E-P2 vs Pentax K-S1 size comparison

Taking into account size and weight, the portability rating of the E-P2 and K-S1 is 86 and 69 respectively.

Olympus E-P2 vs Pentax K-S1 top view buttons comparison

Olympus E-P2 vs Pentax K-S1 Sensor Comparison

In many cases, its tough to picture the difference in sensor sizing merely by researching technical specs. The photograph below should provide you a far better sense of the sensor dimensions in the E-P2 and K-S1.

As you can tell, both cameras offer different resolutions and different sensor sizing. The E-P2 using its smaller sensor is going to make shooting shallow depth of field trickier and the Pentax K-S1 will render greater detail with its extra 8 Megapixels. Higher resolution will help you crop shots a little more aggressively. The older E-P2 will be behind in sensor innovation.

Olympus E-P2 vs Pentax K-S1 sensor size comparison

Olympus E-P2 vs Pentax K-S1 Screen and ViewFinder

Olympus E-P2 vs Pentax K-S1 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus E-P2 Portrait photography info
Pentax K-S1 Portrait photography info
60
manual focus
sensor size is good (Four Thirds)
offers face detection autofocus
exports RAW formats
sensor resolution not great (12 megapixels)
77
manual focus
resolution is good (20MP)
sensor size is good (APS-C)
offers face detect focus
delivers RAW files
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Street Comparison

Olympus E-P2 Street photography factors
Pentax K-S1 Street photography factors
74
image stabilization (Sensor based)
sensor size is good (Four Thirds)
exports RAW formats
no articulating screen
73
has image stabilization (Sensor based)
sensor size is good (APS-C)
delivers RAW files
lighter than competition in class (558g)
very good high ISO (51,200)
no moving screen
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Sports Comparison

Sports photography with Olympus E-P2
Sports photography with Pentax K-S1
40
image stabilization (Sensor based)
sensor size is good (Four Thirds)
slow continuous shooting (3.0 frames per second)
sensor resolution not great (12MP)
bad battery power (300 CIPA)
has no phase detect autofocus
69
high shutter speed (1/6,000 seconds)
has image stabilization (Sensor based)
resolution is good (20MP)
sensor size is good (APS-C)
offers tracking focus
has phase detect auto focus
slow fps (5.4 fps)
not so great battery life (410 CIPA)
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Travel Comparison

Olympus E-P2 Travel photography highlights
Pentax K-S1 Travel photography highlights
43
missing Time Lapse mode
bad battery power (300 CIPA)
sensor resolution not great (12 megapixels)
doesn't posses selfie friendly screen
60
lighter than competition in class (558 grams)
resolution is good (20MP)
flash built-in
missing Time Lapse mode
not so great battery life (410 shots)
does not feature selfie friendly display
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Landscape Comparison

Olympus E-P2 Landscape photography advice
Pentax K-S1 Landscape photography advice
60
manual focus
change lenses (Micro Four Thirds mount)
screen is a decent size (3 inches)
image stabilization (Sensor based)
sensor size is good (Four Thirds)
exports RAW formats
sensor resolution not great (12 megapixels)
bad battery power (300 CIPA)
missing Time Lapse mode
73
manual focus
switch lenses (Pentax KAF2 mount)
good sized screen (3 inches)
has image stabilization (Sensor based)
resolution is good (20MP)
sensor size is good (APS-C)
doesnt have anti aliasing filter
very good high ISO (51,200)
delivers RAW files
not so great battery life (410 shots)
missing Time Lapse mode
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Vlogging Comparison

Olympus E-P2 Vlogging info
Pentax K-S1 Vlogging info
29
image stabilization (Sensor based)
offers face detection autofocus
doesn't posses selfie friendly screen
low video resolution (1280 x 720 pixels)
missing external mic socket
33
has image stabilization (Sensor based)
offers face detect focus
high quality video (1920 x 1080 resolution)
lighter than competition in class (558g)
does not feature selfie friendly display
missing mic port
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Olympus E-P2 vs Pentax K-S1 Specifications

Detailed spec comparison table for Olympus E-P2 and Pentax K-S1
 Olympus PEN E-P2Pentax K-S1
General Information
Brand Name Olympus Pentax
Model Olympus PEN E-P2 Pentax K-S1
Class Entry-Level Mirrorless Advanced DSLR
Released 2010-04-22 2014-08-27
Body design Rangefinder-style mirrorless Mid-size SLR
Sensor Information
Processor TruePic V Prime MII
Sensor type CMOS CMOS
Sensor size Four Thirds APS-C
Sensor dimensions 17.3 x 13mm 23.5 x 15.6mm
Sensor surface area 224.9mm² 366.6mm²
Sensor resolution 12 megapixel 20 megapixel
Anti aliasing filter
Aspect ratio 4:3 3:2
Highest Possible resolution 4032 x 3024 5472 x 3648
Maximum native ISO 6400 51200
Min native ISO 100 100
RAW pictures
Autofocusing
Focus manually
Touch to focus
AF continuous
Single AF
AF tracking
AF selectice
Center weighted AF
Multi area AF
Live view AF
Face detect focusing
Contract detect focusing
Phase detect focusing
Number of focus points 11 11
Lens
Lens mounting type Micro Four Thirds Pentax KAF2
Available lenses 107 151
Focal length multiplier 2.1 1.5
Screen
Display type Fixed Type Fixed Type
Display sizing 3 inches 3 inches
Display resolution 230 thousand dot 921 thousand dot
Selfie friendly
Liveview
Touch capability
Display technology HyperCrystal LCD with AR(Anti-Reflective) coating -
Viewfinder Information
Viewfinder type Electronic (optional) Optical (pentaprism)
Viewfinder coverage - 100%
Viewfinder magnification - 0.64x
Features
Minimum shutter speed 60 seconds 30 seconds
Fastest shutter speed 1/4000 seconds 1/6000 seconds
Continuous shutter speed 3.0 frames/s 5.4 frames/s
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Change WB
Image stabilization
Built-in flash
Flash range no built-in flash 10.00 m (at ISO 100)
Flash settings Auto, On, Off, Red-Eye, Fill-in, Slow Sync, Manual (3 levels) Auto, auto + redeye, on, on + redeye reduction, slow sync, trailing curtain sync, manual
External flash
AEB
WB bracketing
Fastest flash sync 1/180 seconds -
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Video resolutions 1280 x 720 (30 fps), 640 x 480 (30 fps) 1920 x 1080 (30,25,24 fps), 1280 x 720 (60,50 fps)
Maximum video resolution 1280x720 1920x1080
Video data format Motion JPEG H.264
Mic jack
Headphone jack
Connectivity
Wireless None Eye-Fi Connected
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None Optional
Physical
Environmental seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 355 gr (0.78 pounds) 558 gr (1.23 pounds)
Dimensions 121 x 70 x 36mm (4.8" x 2.8" x 1.4") 121 x 93 x 70mm (4.8" x 3.7" x 2.8")
DXO scores
DXO Overall score 56 78
DXO Color Depth score 21.5 23.5
DXO Dynamic range score 10.4 13.0
DXO Low light score 505 1061
Other
Battery life 300 photographs 410 photographs
Style of battery Battery Pack Battery Pack
Battery model BLS-1 D-LI109
Self timer Yes (2 or 12 sec) Yes ( 2 or 12 seconds)
Time lapse shooting
Type of storage SD/SDHC card SD/SDHC/SDXC
Storage slots Single Single
Retail cost $799 $339