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Pentax K-S1 vs Pentax KP

Portability
69
Imaging
64
Features
70
Overall
66
Pentax K-S1 front
 
Pentax KP front
Portability
61
Imaging
68
Features
76
Overall
71

Pentax K-S1 vs Pentax KP Key Specs

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
  • Newer Model is Pentax K-S2
Pentax KP
(Full Review)
  • 24MP - APS-C Sensor
  • 3" Tilting Screen
  • ISO 100 - 819200
  • Sensor based 5-axis Image Stabilization
  • 1/6000s Max Shutter
  • 1920 x 1080 video
  • Pentax KAF2 Mount
  • 703g - 132 x 101 x 76mm
  • Launched January 2017
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Pentax K-S1 vs Pentax KP Overview

Below, we will be reviewing the Pentax K-S1 versus Pentax KP, both Advanced DSLR cameras and both are sold by Pentax. The image resolution of the K-S1 (20MP) and the KP (24MP) is relatively comparable and they use the exact same sensor size (APS-C).

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The K-S1 was manufactured 3 years earlier than the KP and that is a fairly sizable gap as far as camera tech is concerned. Each of the cameras come with the identical body type (Mid-size SLR).

Before getting straight into a thorough comparison, below is a quick summary of how the K-S1 scores against the KP in the way of portability, imaging, features and an overall grade.

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Reasons to pick Pentax K-S1 over the Pentax KP

 K-S1 KP 

Reasons to pick Pentax KP over the Pentax K-S1

 KP K-S1 
LaunchedJanuary 2017August 2014More recent by 29 months
Screen typeTiltingFixed Tilting screen

Common features in the Pentax K-S1 and Pentax KP

 K-S1 KP 
Manual focus Very accurate focusing
Screen dimension3"3"Identical screen size
Screen resolution921k921kEqual screen resolution
Selfie screen No selfie screen
Touch friendly screen No Touch friendly screen

Pentax K-S1 vs Pentax KP Physical Comparison

When you are planning to lug around your camera frequently, you will have to factor its weight and dimensions. The Pentax K-S1 offers physical measurements of 121mm x 93mm x 70mm (4.8" x 3.7" x 2.8") accompanied by a weight of 558 grams (1.23 lbs) whilst the Pentax KP has dimensions of 132mm x 101mm x 76mm (5.2" x 4.0" x 3.0") with a weight of 703 grams (1.55 lbs).

Compare the Pentax K-S1 versus Pentax KP in the all new Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Always remember, the weight of an Interchangeable Lens Camera will change depending on the lens you have attached at the time. Underneath is the front view scale comparison of the K-S1 vs the KP.

Pentax K-S1 vs Pentax KP size comparison

Looking at size and weight, the portability score of the K-S1 and KP is 69 and 61 respectively.

Pentax K-S1 vs Pentax KP top view buttons comparison

Pentax K-S1 vs Pentax KP Sensor Comparison

Oftentimes, it is hard to see the contrast in sensor measurements only by going through specs. The visual here may provide you a much better sense of the sensor sizing in the K-S1 and KP.

As you can plainly see, both of these cameras have got the exact same sensor measurements albeit not the same resolution. You should count on the Pentax KP to produce greater detail due to its extra 4 Megapixels. Higher resolution can also make it easier to crop photographs much more aggressively. The older K-S1 will be behind with regard to sensor innovation.

Pentax K-S1 vs Pentax KP sensor size comparison

Pentax K-S1 vs Pentax KP Screen and ViewFinder

Pentax K-S1 vs Pentax KP Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax K-S1 Portrait photography info
Pentax KP Portrait photography info
78
focusing manually
megapixel count decent (20 megapixels)
good sensor size (APS-C)
offers face detect autofocus
delivers RAW files
80
has manual focus
megapixel count decent (24 megapixels)
sensor size is decent (APS-C)
provides face detection focusing
delivers RAW formats
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Street Comparison

Pentax K-S1 Street photography information
Pentax KP Street photography information
73
image stabilization (Sensor based)
good sensor size (APS-C)
delivers RAW files
lighter than competition in class (558 grams)
very good ISO range (51,200)
no moving screen
76
screen tilts up and down
image stabilization (Sensor based 5-axis)
sensor size is decent (APS-C)
delivers RAW formats
environment proof
great ISO range (819,200)
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Sports Comparison

Pentax K-S1 Sports photography features
Pentax KP Sports photography features
69
max shutter speed is good (1/6,000 seconds)
image stabilization (Sensor based)
megapixel count decent (20MP)
good sensor size (APS-C)
offers tracking focus
has phase detect autofocus
low fps (5.4 frames/s)
not so great battery life (410 shots)
72
great max shutter speed (1/6,000s)
silent mode (1/24,000s)
image stabilization (Sensor based 5-axis)
megapixel count decent (24MP)
sensor size is decent (APS-C)
provides tracking autofocus
environment proof
not so great battery life (390 shots)
no phase detect AF
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Travel Comparison

Pentax K-S1 Travel photography information
Pentax KP Travel photography information
60
lighter than competition in class (558 grams)
megapixel count decent (20 megapixels)
flash built-in
doesn't have Timelapse mode
not so great battery life (410 shots)
screen isn't selfie friendly
62
environment proof
megapixel count decent (24MP)
built-in flash
not so great battery life (390 CIPA)
does not posses selfie friendly screen
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Landscape Comparison

Pentax K-S1 as a Landscape photography camera
Pentax KP as a Landscape photography camera
73
focusing manually
change lenses (Pentax KAF2 mount)
pretty good screen size (3 inch)
image stabilization (Sensor based)
megapixel count decent (20 megapixels)
good sensor size (APS-C)
no anti-alias filter
very good ISO range (51,200)
delivers RAW files
not so great battery life (410 CIPA)
doesn't have Timelapse mode
78
has manual focus
change lenses (Pentax KAF2 mount)
decent sized screen (3 inches)
image stabilization (Sensor based 5-axis)
megapixel count decent (24MP)
sensor size is decent (APS-C)
great ISO range (819,200)
delivers RAW formats
environment proof
not so great battery life (390 per charge)
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Vlogging Comparison

Vlogging with Pentax K-S1
Vlogging with Pentax KP
33
image stabilization (Sensor based)
offers face detect autofocus
video resolution high (1920 x 1080 resolution)
lighter than competition in class (558 grams)
screen isn't selfie friendly
doesn't have microphone port
35
image stabilization (Sensor based 5-axis)
provides face detection focusing
high res video (1920 x 1080 pxls)
comes with external mic support
does not posses selfie friendly screen
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Pentax K-S1 vs Pentax KP Specifications

Detailed spec comparison table for Pentax K-S1 and Pentax KP
 Pentax K-S1Pentax KP
General Information
Make Pentax Pentax
Model type Pentax K-S1 Pentax KP
Class Advanced DSLR Advanced DSLR
Announced 2014-08-27 2017-01-26
Physical type Mid-size SLR Mid-size SLR
Sensor Information
Chip Prime MII PRIME IV
Sensor type CMOS CMOS
Sensor size APS-C APS-C
Sensor dimensions 23.5 x 15.6mm 23.5 x 15.6mm
Sensor surface area 366.6mm² 366.6mm²
Sensor resolution 20 megapixel 24 megapixel
Anti alias filter
Aspect ratio 3:2 3:2
Peak resolution 5472 x 3648 6016 x 4000
Highest native ISO 51200 819200
Minimum native ISO 100 100
RAW support
Autofocusing
Focus manually
Autofocus touch
Autofocus continuous
Autofocus single
Tracking autofocus
Selective autofocus
Autofocus center weighted
Multi area autofocus
Autofocus live view
Face detection autofocus
Contract detection autofocus
Phase detection autofocus
Total focus points 11 27
Cross type focus points - 25
Lens
Lens support Pentax KAF2 Pentax KAF2
Amount of lenses 151 151
Focal length multiplier 1.5 1.5
Screen
Screen type Fixed Type Tilting
Screen sizing 3 inches 3 inches
Resolution of screen 921 thousand dots 921 thousand dots
Selfie friendly
Liveview
Touch operation
Viewfinder Information
Viewfinder Optical (pentaprism) Optical (pentaprism)
Viewfinder coverage 100% 100%
Viewfinder magnification 0.64x 0.63x
Features
Minimum shutter speed 30s 30s
Fastest shutter speed 1/6000s 1/6000s
Fastest silent shutter speed - 1/24000s
Continuous shutter rate 5.4 frames per sec 7.0 frames per sec
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Change white balance
Image stabilization
Integrated flash
Flash distance 10.00 m (at ISO 100) 6.00 m (at ISO 100)
Flash settings Auto, auto + redeye, on, on + redeye reduction, slow sync, trailing curtain sync, manual Auto, auto w/redeye reduction, flash on w/redeye reduction, slow sync, trailing curtain sync, manual, wireless
External flash
Auto exposure bracketing
White balance bracketing
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Video resolutions 1920 x 1080 (30,25,24 fps), 1280 x 720 (60,50 fps) 1920 x 1080 (60i, 30p)
Highest video resolution 1920x1080 1920x1080
Video data format H.264 MPEG-4, H.264
Mic support
Headphone support
Connectivity
Wireless Eye-Fi Connected Built-In
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS Optional Optional
Physical
Environmental sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 558 grams (1.23 lb) 703 grams (1.55 lb)
Dimensions 121 x 93 x 70mm (4.8" x 3.7" x 2.8") 132 x 101 x 76mm (5.2" x 4.0" x 3.0")
DXO scores
DXO Overall rating 78 not tested
DXO Color Depth rating 23.5 not tested
DXO Dynamic range rating 13.0 not tested
DXO Low light rating 1061 not tested
Other
Battery life 410 shots 390 shots
Battery style Battery Pack Battery Pack
Battery ID D-LI109 D-LI109
Self timer Yes ( 2 or 12 seconds) Yes (2 or 12 secs)
Time lapse recording
Type of storage SD/SDHC/SDXC SD/SDHC/SDXC (UHS-I supported)
Card slots Single Single
Launch cost $339 $747