Pentax K-S1 vs. Sony Alpha9 II ILCE-9M2

Camera Comparison, Reviews and Tests

In depth comparison and review of Pentax K-S1 and Sony Alpha9 II ILCE-9M2. 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. Sony Alpha9 II ILCE-9M2 Comparison Chart
DESIGN AND DIMENSIONS Pentax K-S1 Sony Alpha9 II ILCE-9M2
Product Type Digital camera - 1080p - SLR with Live View mode, movie recording Digital camera - 4K - mirrorless system
Lens Included Body only Body only
Height 9.3 cm 9.64 cm
Width 12 cm 12.89 cm
Depth 7 cm 7.75 cm
Weight 485 g 678 g
Weight Details - Camera with battery and memory card: 678 g
Body Material - Magnesium alloy
Enclosure Colour White | Black Black
Protection - Dust-resistant, moisture-resistant
SENSOR Pentax K-S1 Sony Alpha9 II ILCE-9M2
Sensor Resolution 20.12 Megapixel 24.2 Megapixel
Optical Sensor Type CMOS Exmor RS CMOS
Total Pixels 20,420,000 pixels 28,300,000 pixels
Effective Sensor Resolution 20,120,000 pixels 24,200,000 pixels
Optical Sensor Size APS-C (23.5 x 15.6 mm) Full Frame (35.6 x 23.8 mm)
Frame Rate (Max Resolution) - 30 fps
Sensor Dust Reduction Yes Yes
Sensor Features Special Protect (SP) coating Dust Reduction (image sensor vibration), Anti-Dust coating, APS-C compatible mode
Image Stabiliser - Optical (5-axis image sensor shift mechanism)
Built-in Optical Image Stabiliser - Yes
Sensors - Digital level metre
PROCESSOR Pentax K-S1 Sony Alpha9 II ILCE-9M2
Image Processor PRIME MII BIONZ X
LENS Pentax K-S1 Sony Alpha9 II ILCE-9M2
Lens Mounting Type Pentax KAF2 Sony E-mount
FOCUSING Pentax K-S1 Sony Alpha9 II ILCE-9M2
Auto Focus TTL phase detection TTL contrast and phase detection
Auto Focus Points (Zones) Qty 11 693
Auto Focus Features - Focus Peaking function, 4D FOCUS system
AE/AF Control Face-priority AF, Subject-tracking AF -
Face Detection Yes Face-priority AF function
VIEWFINDER Pentax K-S1 Sony Alpha9 II ILCE-9M2
Viewfinder Type Optical - fixed eye-level pentaprism Electronic - OLED
Viewfinder Colour Support - Colour
Viewfinder Diagonal Size - 0.5"
Viewfinder Resolution - 3,686,400 pixels
Optical Viewfinder Field Coverage 100% 100%
Optical Viewfinder Magnification 0.95x 0.78x
Optical Viewfinder Dioptric Correction Range -2.5 to +1.5 -4 to +3
Field of View Crop Factor - 1.0
Features - Viewfinder brightness control, colour temperature control
EXPOSURE & WHITE BALANCE Pentax K-S1 Sony Alpha9 II ILCE-9M2
ISO (Max) 51200 204800
Native ISO 100-51200 100-51200
Extended ISO (Max) - 204800
Extended ISO (Min) - 50
Light Sensitivity ISO 100-51200, ISO auto (100-51200) ISO 50, ISO 102400, ISO auto (100-12800), ISO 204800, ISO 100-51200
Exposure Metering Multi-segment, centre-weighted, spot Multi-segment, centre-weighted, spot, average, highlight-weighted
Exposure Metering Zones 77 1200
Exposure Modes Programme, automatic, manual, aperture-priority, shutter-priority, shutter & aperture priority Bulb, automatic, manual, aperture-priority, shutter-priority
Bracketing Modes - Dynamic Range Bracketing, Flash Exposure Bracketing, white balance bracketing
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 Black & White, Sepia, Neutral, Vivid, sunset, landscape, portrait, clear, deep, light, autumn leaves, Retro, partial colour, Toy camera, Posterisation, High contrast monochrome, Pop Colour, Soft High-key, Night Scene, Standard, Style Box
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) Incandescent, cloudy, Flash, daylight, shade, fluorescent light (cool white), fluorescent light (daylight), fluorescent light (warm white), Underwater, 2500K - 9900K, fluorescent light (daylight white)
Shutter Type Mechanical electronically-controlled Mechanical, electronic
Max Shutter Speed 1/6000 sec 1/32000 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
Auto Exposure Bracketing - 3, 5 steps in 1/3, 1/2, 2/3, 1, 2 or 3 EV steps, 9 steps in 1/3, 1/2, 2/3 or 1 EV steps
White Balance Bracketing Yes Yes
X-sync Speed 1/180 sec 1/250sec
Exposure Range EV 0-22 (ISO 100) EV -3-20 (ISO 100)
DISPLAY Pentax K-S1 Sony Alpha9 II ILCE-9M2
Type 3" LCD display 3" LCD display
Touch Screen - Yes
Display Format 921,000 pixels 1,440,000 pixels
Display Form Factor Built-in Folding
Display Features Colour control, display brightness control Display brightness control
FLASH Pentax K-S1 Sony Alpha9 II ILCE-9M2
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 Sony Alpha9 II ILCE-9M2
Digital Video Format H.264 AVCHD, H.264, XAVC S
Image Recording Format JPEG, DNG (RAW) + JPEG, DNG (RAW) JPEG, RAW, RAW + JPEG
Max Video Resolution 1920 x 1080 3840 x 2160
Audio Signal Format - Dolby Digital AC-3 (2 channel), Linear PCM
Microphone Operation Mode Mono Stereo
Microphone Features Sensitivity control -
MEMORY Pentax K-S1 Sony Alpha9 II ILCE-9M2
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, SDHC UHS-II Memory Card, SDXC UHS-II Memory Card
Memory Card Included - No
Image Storage - 6000 x 4000
3936 x 2624
3008 x 2000
5328 x 4000
3488 x 2624
2656 x 2000
6000 x 3376
3936 x 2216
3008 x 1688
4000 x 4000
2624 x 2624
2000 x 2000
1312 x 1312
1968 x 1112
1744 x 1312
Video Capture H.264 - 1920 x 1080 - 30 fps
H.264 - 1920 x 1080 - 25 fps
H.264 - 1920 x 1080 - 24 fps
XAVC S - 3840 x 2160 p - 30 fps - 100Mbps
XAVC S - 3840 x 2160 p - 24 fps - 100Mbps
XAVC S - 3840 x 2160 p - 30 fps - 60Mbps
XAVC S - 3840 x 2160 p - 24 fps - 60Mbps
XAVC S - 1920 x 1080 p - 120 fps - 100Mbps
XAVC S - 1920 x 1080 p - 120 fps - 60Mbps
XAVC S - 1920 x 1080 p - 60 fps - 50Mbps
XAVC S - 1920 x 1080 p - 30 fps - 50Mbps
XAVC S - 1920 x 1080 p - 24 fps - 50Mbps
XAVC S - 1920 x 1080 p - 60 fps - 25Mbps
XAVC S - 1920 x 1080 i - 30 fps - 16Mbps
AVCHD - 1920 x 1080 i - 60 fps - 24Mbps
AVCHD - 1920 x 1080 i - 60 fps - 17Mbps
XAVC S - 3840 x 2160 p - 25 fps - 100Mbps
XAVC S - 3840 x 2160 p - 25 fps - 60Mbps
AVCHD - 1920 x 1080 i - 50 fps - 24Mbps
AVCHD - 1920 x 1080 i - 50 fps - 17Mbps
BATTERY AND CHARGING Pentax K-S1 Sony Alpha9 II ILCE-9M2
Battery Type Pentax D-Li109 Lithium Ion Sony NP-FZ100 Lithium Ion
Details Pentax D-Li109 Li-ion rechargeable battery (included) Sony NP-FZ100 Li-ion rechargeable battery - 2280 mAh (included)
Battery Life Photo shooting - 480 shots (50% flash usage)
Playback - 4.5 hours
Photo shooting - 690 shots (LCD Monitor on)
Photo shooting - 500 shots (LCD Monitor off)
Video recording - 200 minutes (LCD Monitor on)
Video recording - 195 minutes (LCD Monitor off)
CONNECTIONS Pentax K-S1 Sony Alpha9 II ILCE-9M2
Interface HDMI HDMI, USB 2.0, NFC (Near Field Communication), IEEE 802.11a/b/g/n/ac, Bluetooth 4.1
Connectivity Features - Remote control via mobile devices, remote live view
Print Standard DPOF support, Exif Print support DPOF support, Exif Print support, PRINT Image Matching
Flash Terminal Hot shoe Hot shoe
Connector Type USB 2.0
HDMI output (19 pin micro HDMI Type D)
USB (USB Type-C)
HDMI output (19 pin micro HDMI Type D)
Microphone (mini-phone stereo 3.5 mm)
Headphones (mini-phone stereo 3.5 mm)
Network (RJ-45)
FEATURES Pentax K-S1 Sony Alpha9 II ILCE-9M2
Self-Timer Delay 2sec, 12sec 10 sec, 2sec, 5 sec
Continuous Shooting Speed 3 frames per second, 5.4 frames per second 8 frames per second, 3 frames per second, 5 frames per second, 20 frames per second, 10 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 Built-in speaker, sharpness control, histogram display, AE lock, AF lock, FE lock, saturation control, contrast control, Dynamic Range Optimizer, Chromatic Aberration Compensation (CAC), Clear Image Zoom, noise reduction over long exposures, Lens Distortion Correction, high ISO speed noise reduction, silent shooting, BRAVIA Sync function, PhotoTV HD, slow motion recording, peripheral shading correction, Flickering Reduction function
OTHERS Pentax K-S1 Sony Alpha9 II ILCE-9M2
Included Accessories Battery charger, body cap, shoulder strap, eyecup, shoe cap Eyepiece cover, body cap, shoulder strap, AC power adaptor, USB cable, shoe cap
Software Drivers & Utilities -
Max Operating Temperature 40 °C 40 °C
Min Operating Temperature -10 °C 0 °C
Other projects: