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Pentax K-1 II vs Pentax K-S1

Portability
55
Imaging
78
Features
82
Overall
79
Pentax K-1 Mark II front
 
Pentax K-S1 front
Portability
69
Imaging
63
Features
70
Overall
65

Pentax K-1 II vs Pentax K-S1 Key Specs

Pentax K-1 II
(Full Review)
  • 36MP - Full frame Sensor
  • 3.2" Fully Articulated Display
  • ISO 100 - 819200
  • Sensor based 5-axis Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Maximum Shutter
  • 1920 x 1080 video
  • Pentax KAF4 Mount
  • 1010g - 137 x 110 x 86mm
  • Introduced February 2018
  • Succeeded the Pentax K-1
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 Maximum Shutter
  • 1920 x 1080 video
  • Pentax KAF2 Mount
  • 558g - 121 x 93 x 70mm
  • Released August 2014
  • Updated by Pentax K-S2
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Pentax K-1 II vs Pentax K-S1 Overview

Here is a in depth overview of the Pentax K-1 II vs Pentax K-S1, both Advanced DSLR cameras and both are designed by Pentax. There is a considerable difference among the sensor resolutions of the K-1 II (36MP) and K-S1 (20MP) and the K-1 II (Full frame) and K-S1 (APS-C) posses totally different sensor sizes.

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The K-1 II was introduced 3 years later than the K-S1 and that is a fairly large difference as far as camera tech is concerned. Both the cameras feature the same body design (Mid-size SLR).

Before delving right into a in-depth comparison, here is a simple introduction of how the K-1 II grades against the K-S1 for portability, imaging, features and an overall rating.

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Reasons to pick Pentax K-1 II over the Pentax K-S1

 K-1 II K-S1 
ReleasedFebruary 2018August 2014Fresher by 43 months
Screen typeFully ArticulatedFixed Fully Articulating screen
Screen size3.2"3"Bigger screen (+0.2")
Screen resolution1037k921kSharper screen (+116k dot)

Reasons to pick Pentax K-S1 over the Pentax K-1 II

 K-S1 K-1 II 

Common features in the Pentax K-1 II and Pentax K-S1

 K-1 II K-S1 
Focus manually Dial precise focus
Selfie screen Absent selfie screen
Touch screen Absent Touch screen

Pentax K-1 II vs Pentax K-S1 Physical Comparison

For anyone who is looking to carry your camera regularly, you'll need to consider its weight and volume. The Pentax K-1 II has got physical dimensions of 137mm x 110mm x 86mm (5.4" x 4.3" x 3.4") accompanied by a weight of 1010 grams (2.23 lbs) and the Pentax K-S1 has sizing of 121mm x 93mm x 70mm (4.8" x 3.7" x 2.8") and a weight of 558 grams (1.23 lbs).

Analyze the Pentax K-1 II vs Pentax K-S1 in our newest Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Bear in mind, the weight of an ILC will vary depending on the lens you select at that moment. Below is a front view measurements comparison of the K-1 II against the K-S1.

Pentax K-1 II vs Pentax K-S1 size comparison

Looking at size and weight, the portability rating of the K-1 II and K-S1 is 55 and 69 respectively.

Pentax K-1 II vs Pentax K-S1 top view buttons comparison

Pentax K-1 II vs Pentax K-S1 Sensor Comparison

Often, it is hard to envision the gap in sensor sizing simply by looking through technical specs. The graphic below might offer you a greater sense of the sensor sizes in the K-1 II and K-S1.

As you have seen, both of these cameras come with different resolutions and different sensor sizing. The K-1 II with its bigger sensor will make achieving shallower DOF easier and the Pentax K-1 II will result in extra detail using its extra 16 Megapixels. Higher resolution can also enable you to crop photographs a good deal more aggressively. The younger K-1 II will have an edge with regard to sensor innovation.

Pentax K-1 II vs Pentax K-S1 sensor size comparison

Pentax K-1 II vs Pentax K-S1 Screen and ViewFinder

Pentax K-1 II vs Pentax K-S1 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax K-1 II as a Portrait photography camera
Pentax K-S1 as a Portrait photography camera
86
has manual focus
great megapixels (36MP)
great sensor size (Full frame)
includes face detection focusing
delivers RAW files
77
manual focus
good MP (20MP)
sensor size is good (APS-C)
includes face detect focus
saves RAW formats
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Street Comparison

Pentax K-1 II Street photography advice
Pentax K-S1 Street photography advice
70
screen articulates fully
image stabilization (Sensor based 5-axis)
great sensor size (Full frame)
delivers RAW files
environment sealing
good ISO range (819,200)
heavier than average (1,010g)
73
built in image stabilization (Sensor based)
sensor size is good (APS-C)
saves RAW formats
lighter than competition (558g)
above average high ISO (51,200)
fixed screen
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Sports Comparison

Pentax K-1 II Sports photography highlights
Pentax K-S1 Sports photography highlights
77
max shutter speed is good (1/8,000 seconds)
image stabilization (Sensor based 5-axis)
great megapixels (36 megapixels)
great sensor size (Full frame)
includes tracking autofocus
environment sealing
has phase detect AF
low fps (4.4 frames per second)
not so great battery life (670 CIPA)
69
maximum shutter speed is high (1/6,000 seconds)
built in image stabilization (Sensor based)
good MP (20 megapixels)
sensor size is good (APS-C)
includes tracking focus
comes with phase detect auto focus
max fps low (5.4 frames/s)
not so great battery (410 CIPA)
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Travel Comparison

Pentax K-1 II Travel photography details
Pentax K-S1 Travel photography details
53
environment sealing
great megapixels (36 megapixels)
not so great battery life (670 CIPA)
heavier than average (1,010 grams)
display isn't selfie friendly
60
lighter than competition (558g)
good MP (20 megapixels)
flash built-in
no Timelapse mode
not so great battery (410 per charge)
display is not selfie friendly
Photography Glossary

Landscape Comparison

Pentax K-1 II Landscape photography details
Pentax K-S1 Landscape photography details
82
has manual focus
switch lenses (Pentax KAF4 mount)
pretty good screen size (3.2 inches)
image stabilization (Sensor based 5-axis)
great megapixels (36 megapixels)
great sensor size (Full frame)
doesnt have anti-alias filter
good ISO range (819,200)
delivers RAW files
environment sealing
has dual storage slots
not so great battery life (670 CIPA)
73
manual focus
switch lenses (Pentax KAF2 mount)
nice screen size (3")
built in image stabilization (Sensor based)
good MP (20MP)
sensor size is good (APS-C)
doesnt have anti aliasing filter
above average high ISO (51,200)
saves RAW formats
not so great battery (410 CIPA)
no Timelapse mode
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Vlogging Comparison

Pentax K-1 II Vlogging information
Pentax K-S1 Vlogging information
32
image stabilization (Sensor based 5-axis)
includes face detection focusing
video res high (1920 x 1080 pxls)
has external mic jack
display isn't selfie friendly
heavier than average (1,010g)
33
built in image stabilization (Sensor based)
includes face detect focus
video res high (1920 x 1080 pixels)
lighter than competition (558g)
display is not selfie friendly
no microphone socket
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Pentax K-1 II vs Pentax K-S1 Specifications

Detailed spec comparison table for Pentax K-1 II and Pentax K-S1
 Pentax K-1 Mark IIPentax K-S1
General Information
Manufacturer Pentax Pentax
Model type Pentax K-1 Mark II Pentax K-S1
Class Advanced DSLR Advanced DSLR
Introduced 2018-02-22 2014-08-27
Physical type Mid-size SLR Mid-size SLR
Sensor Information
Processor Chip PRIME IV Prime MII
Sensor type CMOS CMOS
Sensor size Full frame APS-C
Sensor measurements 35.9 x 24mm 23.5 x 15.6mm
Sensor surface area 861.6mm² 366.6mm²
Sensor resolution 36MP 20MP
Anti alias filter
Aspect ratio 3:2 3:2
Full resolution 7360 x 4912 5472 x 3648
Max native ISO 819200 51200
Minimum native ISO 100 100
RAW pictures
Autofocusing
Focus manually
AF touch
Continuous AF
Single AF
AF tracking
AF selectice
AF center weighted
AF multi area
Live view AF
Face detect AF
Contract detect AF
Phase detect AF
Total focus points 33 11
Cross type focus points 25 -
Lens
Lens support Pentax KAF4 Pentax KAF2
Total lenses 151 151
Focal length multiplier 1 1.5
Screen
Display type Fully Articulated Fixed Type
Display diagonal 3.2 inch 3 inch
Resolution of display 1,037 thousand dots 921 thousand dots
Selfie friendly
Liveview
Touch functionality
Viewfinder Information
Viewfinder Optical (pentaprism) Optical (pentaprism)
Viewfinder coverage 100% 100%
Viewfinder magnification 0.7x 0.64x
Features
Slowest shutter speed 30s 30s
Maximum shutter speed 1/8000s 1/6000s
Continuous shooting rate 4.4 frames/s 5.4 frames/s
Shutter priority
Aperture priority
Manual mode
Exposure compensation Yes Yes
Change WB
Image stabilization
Built-in flash
Flash distance no built-in flash 10.00 m (at ISO 100)
Flash modes Auto Flash Discharge, Auto Flash + Red-eye Reduction, Flash On, Flash On + Red-eye Reduction, Slow-speed Sync, Slow-speed Sync + Red-eye, P-TTL, Trailing Curtain Sync, Contrast-control-sync, High-speed sync, Wireless sync Auto, auto + redeye, on, on + redeye reduction, slow sync, trailing curtain sync, manual
Hot shoe
AEB
White balance bracketing
Maximum flash synchronize 1/200s -
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Video resolutions 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p) 1920 x 1080 (30,25,24 fps), 1280 x 720 (60,50 fps)
Max video resolution 1920x1080 1920x1080
Video format MPEG-4, H.264 H.264
Microphone port
Headphone port
Connectivity
Wireless Auto Flash Discharge, Auto Flash + Red-eye Reduction, Flash On, Flash On + Red-eye Reduction, Slow-speed Sync, Slow-speed Sync + Red-eye, P-TTL, Trailing Curtain Sync, Contrast-control-sync, High-speed sync, Wireless sync Eye-Fi Connected
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS Built-in Optional
Physical
Environmental sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 1010 grams (2.23 lbs) 558 grams (1.23 lbs)
Physical dimensions 137 x 110 x 86mm (5.4" x 4.3" x 3.4") 121 x 93 x 70mm (4.8" x 3.7" x 2.8")
DXO scores
DXO All around rating not tested 78
DXO Color Depth rating not tested 23.5
DXO Dynamic range rating not tested 13.0
DXO Low light rating not tested 1061
Other
Battery life 670 pictures 410 pictures
Battery type Battery Pack Battery Pack
Battery ID D-LI90 D-LI109
Self timer Yes (2 or 12 sec, custom) Yes ( 2 or 12 seconds)
Time lapse recording
Type of storage Dual SD/SDHC/SDXC (UHS-I) SD/SDHC/SDXC
Card slots Two 1
Retail cost $1,737 $339