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Olympus E-P5 vs Pentax K-S1

Portability
85
Imaging
53
Features
76
Overall
62
Olympus PEN E-P5 front
 
Pentax K-S1 front
Portability
69
Imaging
63
Features
70
Overall
65

Olympus E-P5 vs Pentax K-S1 Key Specs

Olympus E-P5
(Full Review)
  • 16MP - Four Thirds Sensor
  • 3" Tilting Screen
  • ISO 100 - 25600
  • Sensor based 5-axis Image Stabilization
  • 1/8000s Maximum Shutter
  • 1920 x 1080 video
  • Micro Four Thirds Mount
  • 420g - 122 x 69 x 37mm
  • Released October 2013
  • Earlier 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
  • Successor is Pentax K-S2
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Olympus E-P5 vs Pentax K-S1 Overview

In this article, we will be evaluating the Olympus E-P5 versus Pentax K-S1, one being a Entry-Level Mirrorless and the latter is a Advanced DSLR by rivals Olympus and Pentax. The resolution of the E-P5 (16MP) and the K-S1 (20MP) is pretty comparable but the E-P5 (Four Thirds) and K-S1 (APS-C) feature different sensor sizes.

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The E-P5 was announced 10 months earlier than the K-S1 which means that they are both of a similar generation. Each of these cameras offer different body type with the Olympus E-P5 being a Rangefinder-style mirrorless camera and the Pentax K-S1 being a Mid-size SLR camera.

Before diving in to a comprehensive comparison, below is a short highlight of how the E-P5 matches up vs the K-S1 with regard to portability, imaging, features and an overall rating.

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Reasons to pick Olympus E-P5 over the Pentax K-S1

 E-P5 K-S1 
Screen typeTiltingFixed Tilting screen
Screen resolution1037k921kClearer screen (+116k dot)
Touch screen Quickly navigate

Reasons to pick Pentax K-S1 over the Olympus E-P5

 K-S1 E-P5 
AnnouncedAugust 2014October 2013Fresher by 10 months

Common features in the Olympus E-P5 and Pentax K-S1

 E-P5 K-S1 
Focus manually Dial accurate focus
Screen sizing3"3"Equivalent screen dimensions
Selfie screen Neither provides selfie screen

Olympus E-P5 vs Pentax K-S1 Physical Comparison

For those who are going to carry your camera regularly, you'll have to think about its weight and volume. The Olympus E-P5 provides exterior measurements of 122mm x 69mm x 37mm (4.8" x 2.7" x 1.5") with a weight of 420 grams (0.93 lbs) and the Pentax K-S1 has sizing of 121mm x 93mm x 70mm (4.8" x 3.7" x 2.8") along with a weight of 558 grams (1.23 lbs).

Examine the Olympus E-P5 versus Pentax K-S1 in the latest Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Don't forget, the weight of an Interchangeable Lens Camera will vary depending on the lens you choose at that moment. Below is the front view dimensions comparison of the E-P5 and the K-S1.

Olympus E-P5 vs Pentax K-S1 size comparison

Considering size and weight, the portability score of the E-P5 and K-S1 is 85 and 69 respectively.

Olympus E-P5 vs Pentax K-S1 top view buttons comparison

Olympus E-P5 vs Pentax K-S1 Sensor Comparison

Oftentimes, it can be tough to picture the contrast in sensor sizing merely by seeing specifications. The photograph below should give you a more clear sense of the sensor sizing in the E-P5 and K-S1.

To sum up, each of the cameras offer different megapixel count and different sensor sizing. The E-P5 using its smaller sensor is going to make shooting bokeh more challenging and the Pentax K-S1 will provide more detail with its extra 4MP. Higher resolution will let you crop photographs a little more aggressively. The older E-P5 will be behind in sensor technology.

Olympus E-P5 vs Pentax K-S1 sensor size comparison

Olympus E-P5 vs Pentax K-S1 Screen and ViewFinder

Olympus E-P5 vs Pentax K-S1 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus E-P5 Portrait photography advice
Pentax K-S1 Portrait photography advice
71
focusing manually
above average flash sync (1/320 seconds)
decent megapixels (16MP)
good sensor size (Four Thirds)
supports face detection focus
saves RAW formats
77
has manual focus
decent sensor resolution (20 megapixels)
sensor size is nice (APS-C)
has face detection autofocus
delivers RAW formats
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Street Comparison

Olympus E-P5 Street photography features
Pentax K-S1 Street photography features
78
has a tilting screen
built in image stabilization (Sensor based 5-axis)
good sensor size (Four Thirds)
saves RAW formats
has touch focus
good high ISO (25,600)
heavier than competition (420 grams)
73
has image stabilization (Sensor based)
sensor size is nice (APS-C)
delivers RAW formats
lighter than average in class (558g)
good high ISO (51,200)
no moving screen
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Sports Comparison

Olympus E-P5 Sports photography information
Pentax K-S1 Sports photography information
68
max shutter speed is good (1/8,000s)
built in image stabilization (Sensor based 5-axis)
decent megapixels (16MP)
good sensor size (Four Thirds)
supports tracking autofocus
has no phase detect auto focus
69
high shutter speed (1/6,000 seconds)
has image stabilization (Sensor based)
decent sensor resolution (20 megapixels)
sensor size is nice (APS-C)
has tracking autofocus
comes with phase detect autofocus
max fps very slow (5.4 frames/s)
low battery life (410 per charge)
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Travel Comparison

Travel photography with Olympus E-P5
Travel photography with Pentax K-S1
68
has touch focus
decent megapixels (16 megapixels)
has built in flash
heavier than competition (420g)
doesn't feature selfie friendly screen
60
lighter than average in class (558g)
decent sensor resolution (20MP)
built-in flash
does not have Timelapse recording
low battery life (410 shots)
screen is not selfie friendly
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Landscape Comparison

Olympus E-P5 as a Landscape photography camera
Pentax K-S1 as a Landscape photography camera
79
focusing manually
change lenses (Micro Four Thirds mount)
decent sized screen (3 inch)
built in image stabilization (Sensor based 5-axis)
decent megapixels (16MP)
good sensor size (Four Thirds)
good high ISO (25,600)
saves RAW formats
73
has manual focus
change lenses (Pentax KAF2 mount)
nice screen size (3")
has image stabilization (Sensor based)
decent sensor resolution (20 megapixels)
sensor size is nice (APS-C)
no anti aliasing filter
good high ISO (51,200)
delivers RAW formats
low battery life (410 CIPA)
does not have Timelapse recording
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Vlogging Comparison

Olympus E-P5 Vlogging information
Pentax K-S1 Vlogging information
33
touchscreen capability
built in image stabilization (Sensor based 5-axis)
supports face detection focus
video resolution high (1920 x 1080 resolution)
doesn't feature selfie friendly screen
missing external mic jack
heavier than competition (420g)
33
has image stabilization (Sensor based)
has face detection autofocus
good video quality (1920 x 1080 pxls)
lighter than average in class (558 grams)
screen is not selfie friendly
does not have external microphone jack
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Olympus E-P5 vs Pentax K-S1 Specifications

Detailed spec comparison table for Olympus E-P5 and Pentax K-S1
 Olympus PEN E-P5Pentax K-S1
General Information
Brand Name Olympus Pentax
Model type Olympus PEN E-P5 Pentax K-S1
Category Entry-Level Mirrorless Advanced DSLR
Released 2013-10-03 2014-08-27
Body design Rangefinder-style mirrorless Mid-size SLR
Sensor Information
Chip - Prime MII
Sensor type CMOS CMOS
Sensor size Four Thirds APS-C
Sensor measurements 17.3 x 13mm 23.5 x 15.6mm
Sensor area 224.9mm² 366.6mm²
Sensor resolution 16MP 20MP
Anti alias filter
Aspect ratio 4:3 3:2
Peak resolution 4608 x 3456 5472 x 3648
Highest native ISO 25600 51200
Lowest native ISO 100 100
RAW pictures
Autofocusing
Focus manually
AF touch
Continuous AF
AF single
AF tracking
Selective AF
Center weighted AF
AF multi area
AF live view
Face detection focusing
Contract detection focusing
Phase detection focusing
Total focus points 35 11
Lens
Lens mount type Micro Four Thirds Pentax KAF2
Amount of lenses 107 151
Focal length multiplier 2.1 1.5
Screen
Screen type Tilting Fixed Type
Screen sizing 3" 3"
Screen resolution 1,037k dot 921k dot
Selfie friendly
Liveview
Touch friendly
Screen tech 3:2 LCD capacitive touchscreen -
Viewfinder Information
Viewfinder type Electronic (optional) Optical (pentaprism)
Viewfinder coverage - 100 percent
Viewfinder magnification - 0.64x
Features
Minimum shutter speed 60s 30s
Fastest shutter speed 1/8000s 1/6000s
Continuous shutter speed 9.0 frames/s 5.4 frames/s
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Custom WB
Image stabilization
Integrated flash
Flash distance 7.00 m (ISO 100) 10.00 m (at ISO 100)
Flash options Auto, On, Off, Red-Eye, Fill-in, Slow Sync (1st or 2nd curtain), Manual (1/1 - 1/64) Auto, auto + redeye, on, on + redeye reduction, slow sync, trailing curtain sync, manual
Hot shoe
AE bracketing
White balance bracketing
Fastest flash sync 1/320s -
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Video resolutions 1920 x 1080 (30p), 1280 x 720 (30p) 1920 x 1080 (30,25,24 fps), 1280 x 720 (60,50 fps)
Highest video resolution 1920x1080 1920x1080
Video format H.264 H.264
Microphone input
Headphone input
Connectivity
Wireless Built-In 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 proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 420 gr (0.93 lbs) 558 gr (1.23 lbs)
Dimensions 122 x 69 x 37mm (4.8" x 2.7" x 1.5") 121 x 93 x 70mm (4.8" x 3.7" x 2.8")
DXO scores
DXO Overall rating 72 78
DXO Color Depth rating 22.8 23.5
DXO Dynamic range rating 12.4 13.0
DXO Low light rating 895 1061
Other
Battery life 330 photographs 410 photographs
Type of battery Battery Pack Battery Pack
Battery ID - D-LI109
Self timer Yes (2 or 12 sec) Yes ( 2 or 12 seconds)
Time lapse feature
Type of storage SD/SDHC/SDXC SD/SDHC/SDXC
Storage slots 1 1
Launch price $389 $339