Pentax K-S1 vs. Pentax K-1 II

Camera Comparison, Reviews and Tests

In depth comparison and review of Pentax K-S1 and Pentax K-1 II. Compare design, sensors, proximity features, memory capacities and other important specifications and features to easily choose the right camera for you. Our goal is to help you uncover differences between the products and find the digital camera that will best fit your needs.

Camera Specifications Comparison

Pentax K-S1 vs. Pentax K-1 II Comparison Chart
DESIGN AND DIMENSIONS Pentax K-S1 Pentax K-1 II
Product Type Digital camera - 1080p - SLR with Live View mode, movie recording Digital camera - 1080p - SLR with Live View mode, movie recording
Lens Included Body only Body only
Height 9.3 cm 11 cm
Width 12 cm 13.65 cm
Depth 7 cm 8.55 cm
Weight 485 g 925 g
Weight Details - Camera body only: 925 g
Camera with battery and memory card: 1010 g
Enclosure Colour White | Black Silver
Protection - Weatherproof, freezeproof, dust-resistant
Navigation - GPS receiver
SENSOR Pentax K-S1 Pentax K-1 II
Sensor Resolution 20.12 Megapixel 36.4 Megapixel
Optical Sensor Type CMOS CMOS
Total Pixels 20,420,000 pixels 36,770,000 pixels
Effective Sensor Resolution 20,120,000 pixels 36,400,000 pixels
Optical Sensor Size APS-C (23.5 x 15.6 mm) 35.9 x 24.0 mm
Frame Rate (Max Resolution) - 30 fps
Sensor Dust Reduction Yes Yes
Sensor Features Special Protect (SP) coating Ultrasonic Wave Motion Cleaning (UWMC)
Image Stabiliser - Optical (5-axis image sensor shift mechanism)
Built-in Optical Image Stabiliser - Yes
Sensors - Magnetometer, digital level metre
PROCESSOR Pentax K-S1 Pentax K-1 II
Image Processor PRIME MII PRIME IV
LENS Pentax K-S1 Pentax K-1 II
Lens Mounting Type Pentax KAF2 Pentax K
FOCUSING Pentax K-S1 Pentax K-1 II
Auto Focus TTL phase detection TTL contrast and phase detection
Auto Focus Points (Zones) Qty 11 33
AE/AF Control Face-priority AF, Subject-tracking AF -
Face Detection Yes Yes
VIEWFINDER Pentax K-S1 Pentax K-1 II
Viewfinder Type Optical - fixed eye-level pentaprism Optical - fixed eye-level pentaprism
Optical Viewfinder Field Coverage 100% 100%
Optical Viewfinder Magnification 0.95x 0.70x
Optical Viewfinder Dioptric Correction Range -2.5 to +1.5 -3 to +1.2
EXPOSURE & WHITE BALANCE Pentax K-S1 Pentax K-1 II
ISO (Max) 51200 819200
Native ISO 100-51200 100-819200
Light Sensitivity ISO 100-51200, ISO auto (100-51200) ISO auto, ISO 100-819200
Exposure Metering Multi-segment, centre-weighted, spot Multi-segment, centre-weighted, spot
Exposure Metering Zones 77 -
Exposure Modes Programme, automatic, manual, aperture-priority, shutter-priority, shutter & aperture priority Programme, bulb, automatic, manual, aperture-priority, shutter-priority, ISO priority, shutter & aperture priority
Shooting Programs Landscape, portrait mode, macro, museum, surf & snow, PET, Blue Sky, food, night scene, sunset, candle, night snapshot, night scene with portrait, kids, Stage, night scene HDR, moving object, forest, backlight silhouette -
Special Effects Natural, bright, Vibrant, monochrome, Muted, landscape, portrait, Cross Process, Bleach Bypass, Radiant, Reversal Film, Tone Expansion, Cold vintage, Colour Fade, Bold Monochrome, Unicolour Bold, Clear Tone, Warm Fade, Brilliant Colour, Infrared Filter -
White Balance Custom, automatic, presets Custom, automatic, presets
White Balance Presets Cloudy, tungsten light, Flash, daylight, shade, fluorescent light (cool white), fluorescent light (warm white), Color Temperature Enhancement (CTE), fluorescent light (daylight colour), fluorescent light (daylight white) Cloudy, tungsten light, Flash, daylight, shade, fluorescent light (cool white), fluorescent light (daylight), fluorescent light (warm white), Color Temperature Enhancement (CTE), fluorescent light (daylight white), ASTRO TRACER
Shutter Type Mechanical electronically-controlled Mechanical electronically-controlled
Max Shutter Speed 1/6000 sec 1/8000 sec
Min Shutter Speed 30 sec 30 sec
Exposure Compensation ±5 EV range, in 1/2 or 1/3 EV steps ±5 EV range, in 1/2 or 1/3 EV steps
White Balance Bracketing Yes -
X-sync Speed 1/180 sec 1/200sec
Exposure Range EV 0-22 (ISO 100) EV -3-20 (ISO 100)
DISPLAY Pentax K-S1 Pentax K-1 II
Type 3" LCD display 3.2" LCD display
Display Format 921,000 pixels 1,037,000 pixels
Display Form Factor Built-in Folding
Display Features Colour control, display brightness control Colour control, display brightness control, display saturation control
FLASH Pentax K-S1 Pentax K-1 II
Camera Flash Pop-up flash -
Guide Number (m / ISO 100) 10 -
Flash Modes Fill-in mode, rear curtain sync, slow synchro, auto mode, flash OFF mode, red-eye reduction -
Red-Eye Reduction Yes -
Features AF illuminator, flash +/- compensation -
VIDEOGRAPHY / CAMCORDER Pentax K-S1 Pentax K-1 II
Digital Video Format H.264 H.264, MOV
Image Recording Format JPEG, DNG (RAW) + JPEG, DNG (RAW) JPEG, RAW + JPEG, DNG (RAW), PEF (RAW)
Max Video Resolution 1920 x 1080 1920 x 1080
Microphone Operation Mode Mono Stereo
Microphone Features Sensitivity control Wind noise reduction
MEMORY Pentax K-S1 Pentax K-1 II
Memory Card Slot SD card Dual SD card
Supported Memory Cards SD Memory Card, SDXC Memory Card, SDHC Memory Card, SDXC UHS-I Memory Card SD Memory Card, SDXC Memory Card, SDHC Memory Card, SDHC UHS-I Memory Card, SDXC UHS-I Memory Card
Memory Card Included - No
Image Storage - RAW 7360 x 4912
JPEG 7360 x 4912
JPEG 5760 x 3840
JPEG 4224 x 2816
JPEG 1920 x 1280
RAW 4800 x 3200
JPEG 4800 x 3200
Video Capture H.264 - 1920 x 1080 - 30 fps
H.264 - 1920 x 1080 - 25 fps
H.264 - 1920 x 1080 - 24 fps
1920 x 1080 i - 60 fps
1920 x 1080 i - 50 fps
1920 x 1080 p - 30 fps
1920 x 1080 p - 25 fps
1920 x 1080 p - 24 fps
1280 x 720 p - 60 fps
1280 x 720 p - 50 fps
BATTERY AND CHARGING Pentax K-S1 Pentax K-1 II
Battery Type Pentax D-Li109 Lithium Ion Pentax D-Li90 Lithium Ion
Details Pentax D-Li109 Li-ion rechargeable battery (included) Pentax D-Li90 Li-ion rechargeable battery (included)
Battery Life Photo shooting - 480 shots (50% flash usage)
Playback - 4.5 hours
Photo shooting - 670 shots
Playback - 340 minutes
CONNECTIONS Pentax K-S1 Pentax K-1 II
Interface HDMI HDMI, USB 2.0, IEEE 802.11b/g/n
Print Standard DPOF support, Exif Print support -
Computer Connectivity - Mac, Windows
Flash Terminal Hot shoe Hot shoe, PC terminal
Connector Type USB 2.0
HDMI output (19 pin micro HDMI Type D)
USB 2.0 (5 pin Micro-USB Type B)
HDMI output (19 pin micro HDMI Type D)
Microphone (mini-phone stereo 3.5 mm)
Headphones (mini-phone stereo 3.5 mm)
FEATURES Pentax K-S1 Pentax K-1 II
Self-Timer Delay 2sec, 12sec 2sec, 12sec
Continuous Shooting Speed 3 frames per second, 5.4 frames per second 3 frames per second, 1 frame per second, 0.7 frames per second, 6.4 frames per second, 4.4 frames per second
HDR Mode Auto HDR mode Auto HDR mode
Additional Features RGB primary colour filter, depth-of-field preview button, digital image rotation, camera orientation detection, histogram display, AE lock, AF lock, cropping an image, resizing an image, saturation control, in-camera film editing, in-camera RAW processing, HDR image enhancement technology, hue control, Eye-Fi Card Ready, LED body illumination Audio recording, digital image rotation, camera orientation detection, histogram display, AE lock, AF lock, cropping an image, resizing an image, interval shooting mode, in-camera RAW processing, peripheral illumination correction, High ISO NR, no anti-aliasing filter, Lens Distortion Correction, primary colour filter, colour moire correction, Lateral Chromatic Aberration Correction, anti-aliasing filter simulator, diffraction correction, Pixel Shift Resolution System II
OTHERS Pentax K-S1 Pentax K-1 II
Included Accessories Battery charger, body cap, shoulder strap, eyecup, shoe cap Eyepiece cover, battery charger, body cap, battery grip, eyecup, shoe cap, additional battery, battery grip terminal cover, sync terminal cover
Software Drivers & Utilities Digital Camera Utility 5
Max Operating Temperature 40 °C 40 °C
Min Operating Temperature -10 °C -10 °C
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