Pentax K-S1 vs. Canon EOS Ra

Camera Comparison, Reviews and Tests

In depth comparison and review of Pentax K-S1 and Canon EOS Ra. 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. Canon EOS Ra Comparison Chart
DESIGN AND DIMENSIONS Pentax K-S1 Canon EOS Ra
Product Type Digital camera - 1080p - SLR with Live View mode, movie recording Digital camera - 4K - mirrorless system with Live View mode, movie recording
Lens Included Body only Body only
Height 9.3 cm 9.83 cm
Width 12 cm 13.58 cm
Depth 7 cm 8.44 cm
Weight 485 g 580 g
Weight Details - Camera body only: 580 g
Camera with battery and memory card: 660 g
Body Material - Magnesium alloy
Enclosure Colour White | Black -
Protection - Waterproof, dust-resistant
SENSOR Pentax K-S1 Canon EOS Ra
Sensor Resolution 20.12 Megapixel 30.3 Megapixel
Optical Sensor Type CMOS CMOS
Total Pixels 20,420,000 pixels 31,700,000 pixels
Effective Sensor Resolution 20,120,000 pixels 30,300,000 pixels
Optical Sensor Size APS-C (23.5 x 15.6 mm) Full Frame (36 x 24 mm)
Frame Rate (Max Resolution) - 30 fps
Sensor Dust Reduction Yes Yes
Sensor Features Special Protect (SP) coating EOS Integrated Cleaning System
PROCESSOR Pentax K-S1 Canon EOS Ra
Image Processor PRIME MII DIGIC 8
LENS Pentax K-S1 Canon EOS Ra
Lens Mounting Type Pentax KAF2 Canon RF
FOCUSING Pentax K-S1 Canon EOS Ra
Auto Focus TTL phase detection Dual Pixel CMOS AF
Auto Focus Points (Zones) Qty 11 5655
Auto Focus Features - Focus Peaking function
AE/AF Control Face-priority AF, Subject-tracking AF Face-priority AF, Subject-tracking AF, Eye detection AF, Zone AF, Touch and Drag AF
Face Detection Yes Face Detection AF/AE
VIEWFINDER Pentax K-S1 Canon EOS Ra
Viewfinder Type Optical - fixed eye-level pentaprism Electronic - OLED
Viewfinder Diagonal Size - 0.5"
Viewfinder Resolution - 3,690,000 pixels
Optical Viewfinder Field Coverage 100% 100%
Optical Viewfinder Magnification 0.95x 0.76x
Optical Viewfinder Dioptric Correction Range -2.5 to +1.5 -4 to +2
Field of View Crop Factor - 1.0
Features - Viewfinder brightness control
EXPOSURE & WHITE BALANCE Pentax K-S1 Canon EOS Ra
ISO (Max) 51200 102400
Native ISO 100-51200 100-40000
Extended ISO (Max) - 51200 (H1), 102400 (H2)
Extended ISO (Min) - 50
Light Sensitivity ISO 100-51200, ISO auto (100-51200) ISO 50, ISO 102400, ISO 51200, ISO 100-40000
Exposure Metering Multi-segment, centre-weighted, spot Evaluative, centre-weighted, partial (6.1%), spot (2.7%)
Exposure Metering Zones 77 384
Exposure Modes Programme, automatic, manual, aperture-priority, shutter-priority, shutter & aperture priority Programme, bulb, automatic, manual, aperture-priority, shutter-priority, E-TTL II program flash
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 Neutral, Custom Effect, Faithful, monochrome, landscape, portrait, Standard, Fine Detail
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 (white)
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 ±3 EV range, in 1/2 or 1/3 EV steps
Auto Exposure Bracketing - 3 steps in 1/2 or 1/3 EV steps
White Balance Bracketing Yes 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 Canon EOS Ra
Type 3" LCD display 3.15" LCD display
Touch Screen - Yes
Display Format 921,000 pixels 2,100,000 pixels
Display Form Factor Built-in Rotating
Display Features Colour control, display brightness control Display brightness control, display colour control, anti-smudge coating
FLASH Pentax K-S1 Canon EOS Ra
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 Canon EOS Ra
Digital Video Format H.264 H.264
Image Recording Format JPEG, DNG (RAW) + JPEG, DNG (RAW) JPEG, RAW, RAW + JPEG, C-RAW
Max Video Resolution 1920 x 1080 3840 x 2160
Audio Signal Format - Linear PCM
Microphone Operation Mode Mono Stereo
Microphone Features Sensitivity control -
MEMORY Pentax K-S1 Canon EOS Ra
Memory Card Slot SD card 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-II Memory Card, SDXC UHS-II Memory Card
Memory Card Included - No
Image Storage - RAW 6720 x 4480
RAW 4176 x 2784
RAW 5952 x 4480
RAW 6720 x 4480
RAW 4480 x 4480
JPEG 4464 x 2976
JPEG 3968 x 2976
JPEG 4464 x 2512
JPEG 2976 x 2976
JPEG 3360 x 2240
JPEG 2400 x 1600
JPEG 2976 x 2240
JPEG 3360 x 1888
JPEG 2240 x 2240
JPEG 2400 x 1600
JPEG 2112 x 1600
JPEG 2400 x 1344
JPEG 1600 x 1600
Video Capture H.264 - 1920 x 1080 - 30 fps
H.264 - 1920 x 1080 - 25 fps
H.264 - 1920 x 1080 - 24 fps
H.264 - 3840 x 2160 p - 29.97 fps
H.264 - 3840 x 2160 p - 25 fps
H.264 - 3840 x 2160 p - 24 fps
H.264 - 3840 x 2160 p - 23.98 fps
H.264 - 1920 x 1080 p - 59.94 fps
H.264 - 1920 x 1080 p - 50 fps
H.264 - 1920 x 1080 p - 29.97 fps
H.264 - 1920 x 1080 p - 25 fps
H.264 - 1920 x 1080 p - 24 fps
H.264 - 1920 x 1080 p - 23.98 fps
H.264 - 1280 x 720 p - 119.9 fps
H.264 - 1280 x 720 p - 100 fps
H.264 - 1280 x 720 p - 59.94 fps
H.264 - 1280 x 720 p - 50 fps
H.264 - 1280 x 720 p - 29.97 fps
H.264 - 1280 x 720 p - 25 fps
BATTERY AND CHARGING Pentax K-S1 Canon EOS Ra
Battery Type Pentax D-Li109 Lithium Ion Canon LP-E6N Lithium Ion
Details Pentax D-Li109 Li-ion rechargeable battery (included) Canon LP-E6N Li-ion rechargeable battery (included)
Battery Life Photo shooting - 480 shots (50% flash usage)
Playback - 4.5 hours
Photo shooting - 370 shots (at 23 °C (Live View mode))
Photo shooting - 350 shots (at 0 °C (Live View mode))
Photo shooting - 350 shots (at 0 °C (LCD Monitor off))
Photo shooting - 330 shots (at 0 °C (LCD Monitor off))
CONNECTIONS Pentax K-S1 Canon EOS Ra
Interface HDMI HDMI, USB 3.1, IEEE 802.11b/g/n, Bluetooth 4.1
Connectivity Features - Remote control via mobile devices, remote live view, Wireless Image Transfer, wireless image printing
Print Standard DPOF support, Exif Print support DPOF support, Exif Print support, PictBridge support
Computer Connectivity - Mac, Windows
Flash Terminal Hot shoe Hot shoe
Connector Type USB 2.0
HDMI output (19 pin micro HDMI Type D)
USB 3.1 (USB Type-C)
HDMI output (19 pin mini HDMI Type C)
Audio line-in / microphone (mini-phone stereo 3.5 mm)
Headphones (mini-phone stereo 3.5 mm)
Remote control
FEATURES Pentax K-S1 Canon EOS Ra
Self-Timer Delay 2sec, 12sec 10 sec, 2sec
Continuous Shooting Speed 3 frames per second, 5.4 frames per second 8 frames per second, 3 frames per second, 5 frames per second, 2.2 frames per second
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 Auto power save, camera orientation detection, histogram display, AE lock, AF lock, cropping an image, resizing an image, highlight tone priority, Dust Delete Data system, USB charging, Auto Lighting Optimizer, in-camera RAW processing, peripheral illumination correction, Time-Lapse recording, Canon Log Gamma mode, high ISO speed noise reduction, silent shooting, Dual Pixel CMOS AF technology, diffraction correction, Flicker detection, Digital Lens Optimizer, RGB primary colour filter with increased Hα light transmission rate, 30x zoom on LCD in Live View mode
OTHERS Pentax K-S1 Canon EOS Ra
Included Accessories Battery charger, body cap, shoulder strap, eyecup, shoe cap Battery charger, body cap, neck strap, USB cable
Software Drivers & Utilities Canon Digital Photo Professional
Max Operating Temperature 40 °C 40 °C
Min Operating Temperature -10 °C 0 °C
Service & Support - Limited warranty - 2 years
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