• APS-C 366.6mm2
  • 20.1 megapixels
  • ISO 100 - 51,200
  • 35mm 861.6mm2
  • 26.2 megapixels
  • ISO 100 - 40,000
  • Detailed specifications
  • Pentax K-S1
  • Canon EOS RP
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Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:    
Successor:    
General
Model Number: K-S1 EOS RP
Alternate Model Number(s):    
Camera Format: SLR Compact System Camera
Currently Manufactured: No Yes
Retail Price: $799.95 $2399.00
Street Price: $501.65 $949.00
Date Available: 2014-09-15 2019-03-15
Tripod Mount: Yes Yes
Weight: 27.0 oz (765 g)
includes batteries, kit lens
17.1 oz (485 g)
includes batteries
Size: 4.8 x 3.7 x 2.8 in.
(121 x 93 x 70 mm)
5.2 x 3.3 x 2.8 in.
(133 x 85 x 70 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CMOS
Sensor Manufacturer:   Canon
Effective Megapixels: 20.1 26.2
Sensor Format: APS-C 35mm
Sensor size: 366.6mm2 (23.50mm x 15.60mm) 861.6mm2 (35.90mm x 24.00mm)
Approximate Pixel Pitch: 4.29 microns 5.75 microns
Focal Length Multiplier: 1.5x 1.0x
Aspect Ratio: 3:2 3:2
Color Filter Type: RGBG RGBG
Anti Aliasing Filter: Optional Fixed
Self-Cleaning: Yes Yes
Sensor shift image stabilization: Yes No
On-Sensor Phase Detect: No Yes
DxO Sensor Score: 78  
DxO Color Depth Score (bits): 23.5  
DxO Dynamic Range Score (evs): 13.0  
DxO Maximum Effective ISO Score (iso): 1,061  
Image Capture
Image Resolution: 5472 x 3648 (20.0 MP, 3:2),
4224 x 2816 (11.9 MP, 3:2),
3072 x 2048 (6.3 MP, 3:2),
1920 x 1280 (2.5 MP, 3:2)
6240 x 4160 (26.0 MP, 3:2),
4160 x 2768 (11.5 MP, 3:2),
3120 x 2080 (6.5 MP, 3:2),
2400 x 1600 (3.8 MP, 3:2),
6240 x 3504 (21.9 MP, 16:9),
4160 x 2336 (9.7 MP, 16:9),
3120 x 1752 (5.5 MP, 16:9),
2400 x 1344 (3.2 MP, Other),
5536 x 4160 (23.0 MP, 4:3),
3680 x 2768 (10.2 MP, 4:3),
2768 x 2080 (5.8 MP, 4:3),
2112 x 1600 (3.4 MP, Other),
4160 x 4160 (17.3 MP, 1:1),
2768 x 2768 (7.7 MP, 1:1),
2080 x 2080 (4.3 MP, 1:1),
1600 x 1600 (2.6 MP, 1:1)
Image File Format: JPEG (EXIF 2.30), 12-bit RAW (.PEF, .DNG) JPEG (EXIF 2.3), 14-bit .CR3 RAW, C-RAW, RAW+JPEG
Continuous-mode frames/second: 5.4 5.0
Video Capture
Can take movies: Yes Yes
Movie Resolution: 1920x1080 (30p/​25p/​24p)
1280x720 (60p/​50p)
3840x2160 (25p/​24p)
1920x1080 (60p/​50p/​30p/​25p)
1280x720 (60p/​50p/​30p/​25p)
Movie File Format: MPEG-4 AVC/H.264 (MOV) MP4 (Video: MPEG-4 AVC / H.264, Audio: Linear PCM or AAC)
Composite Video Out: No
NTSC/PAL Switchable Video: n/a n/a
Video Usable as Viewfinder: n/a n/a
HD Video Out: Yes Yes
HD Video Connection: HDMI HDMI
Lens & Optics
Lens Mount: Pentax K (KA/KAF/KAF2) Canon RF
Lens: smc Pentax-DA L 18-55mm f/3.5-5.6 AL Canon RF 24-105mm f/4L IS USM; 18 elements in 14 groups, with UD and aspherical elements, Air Sphere, SWC and Fluorine coatings
Focal Length (35mm equivalent): 27 - 83mm 24 - 105mm
Focal Length (actual): 18 - 55mm 24 - 105mm
Zoom Ratio: 3.06x 4.38x
Aperture Range: f/3.5 - f/22 (wide) / f/5.6 - f/40 (tele) f/4 - f/22; 9-bladed aperture
Integrated ND Filter: No
Normal Focus Range: 25 cm to Infinity
9.8 in to Infinity
45 cm to Infinity
17.7 in to Infinity
Macro Focus Range:    
Filter Thread: 52.0mm 77.0mm
Thread Type: n/a n/a
Optical Image Stabilization: No Yes
Digital Zoom:
Digital Zoom Values:    
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: SAFOX IX i+, TTL phase-matching -11 point (9 cross type focus points in the center) Dual-Pixel CMOS AF: 4779 selectable AF points; Face+Tracking AF, Spot AF, 1-point AF, Expand AF Area, Zone AF; Touch and Drag AF; Eye-AF
Auto Focus Assist Light? Yes Yes
Manual Focus: Yes Yes
Viewfinder
Viewfinder: Optical / LCD EVF / LCD
Viewfinder Type: SLR type; eye-level pentaprism, ~100% coverage, 0.95x mag., 20.5mm eyepoint, -2.5 to +1.5 diopter EVF: 2.36M dot OLED, 100% coverage, 0.70x magnification, 22mm eyepoint, -4 to +1 diopter, eye sensor
Focus Peaking: Yes No
EVF Resolution: n/a 2,360,000 dots
Viewfinder Magnification (35mm equivalent): 0.63x 0.70x
Viewfinder Magnification (nominal/claimed): 0.95x 0.70x
Display
Eye-level Viewfinder: Yes Yes
Rear Display: Yes Yes
Rear Display Size (inches): 3.0 3.0
Rear Display Resolution: 921,600 dots (307,200 px) 1,040,000 dots (346,600 px)
Touchscreen: No Yes
Articulating Screen: No Yes
Tilt Swivel Screen: No Yes
Selfie Screen: No Yes
Max Playback Zoom: 16.0x 10.0x
Top Deck Display: No No
Exposure
Maximum ISO (native): 51200 40000
Minimum ISO (native): 100 100
ISO Settings: Auto, 100-51200 (1, 1/2 or 1/3 EV steps) Auto, 100 - 40000 in 1/3 or 1EV steps, Expandable to L (50), H1 (51200) and H2 (102400)
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Multi Auto, Daylight, Shade, Cloudy, Fluorescent Light (D: Daylight Color, N: Daylight White, W: Cool White, L: Warm White), Tungsten Light, Flash, CTE, Manual, Color Temperature Auto (Ambience priority/White priority), Daylight, Shade, Cloudy, Tungsten, White Fluorescent, Flash, Custom, Color Temperature
Shutter Speed Range: 1/6000 - 30 sec 1/4000 - 30 sec
Bulb Mode: Yes Yes
Exposure Compensation: +/- 5.0EV in 0.3EV steps +/- 3.0EV in 0.3EV steps
Metering Modes: TTL open-aperture: 77 segment Multi, Center-weighted, Spot Evaluative metering (AF point-linked), Partial (approx. 5.5% of the area at the center of the screen), Center-weighted, Spot (approx. 2.7% of the area at the center of the screen)
Program Auto Exposure: Yes Yes
Aperture Priority: Yes Yes
Shutter Priority: Yes Yes
Full Manual Exposure: Yes Yes
Creative Exposure Modes: Sensitivity Priority, Shutter & Aperture Priority (Tav); Scene: Portrait, Landscape, Macro, Moving Object, Night Scene Portrait, Sunset, Blue Sky, Forest, Night Scene, Night Scene HDR (JPEG only), Night Snap, Food, Pet, Kids, Surf & Snow, Backlight Silhouette, Candlelight, Stage Lighting, Museum; Effect: Faded Color, Clear Tone, Brilliant Color, Unicolor Bold, Vintage Color, Cross Processing, Warm Fade, Tone Expansion, Bold Monochrome, Infrared Filter, Vibrant Color Enhance; Digital filters (capture): Extract Color, Replace Color, Toy Camera, Retro, High Contrast, Shading, Invert Color, Unicolor Bold, Bold Monochrome; HDR: Auto, HDR1, HDR2, HDR3 Scene Intelligent Auto, Flexible Priority, Scene (Portrait, Group Photo, Landscape, Sports, Kids, Panning, Close-up, Food, Candlelight, Night Portrait, Handheld Night Scene, HDR Backlight Control), Focus Stacking, 3 Custom User Settings
Self Timer: 2 or 12 seconds 10s, 2s, 2-10 shots after 10 seconds
Time Lapse (intervalometer):    
High Resolution Composite: No No
Flash
Built-in Flash: Yes No
Flash Modes: Auto Flash Discharge, Auto Flash + Red-eye Reduction (Auto Picture, Scene) Flash On, Flash On+ Red-eye Reduction, Slow-speed Sync, Trailing Curtain Sync, Manual Flash Discharge (Full-1/128) E-TTL II Auto Flash, Metered Manual, FE Lock
Flash Guide Number (ISO 100): 10.0 m / 32.8 ft. n/a
Flash Range Description: Depends on lens n/a
Max Flash Sync: 1/180 1/180
Flash Exposure Compensation: -2 to +1 EV in 0.5EV steps +/- 3.0 EV in 0.3EV steps
External Flash Connection: Hot Shoe Hot Shoe
Built-In Wireless Flash Control:   No
Image Storage
Usable Memory Types: SD / SDHC / SDXC SD / SDHC / SDXC
UHS Support: UHS-I UHS-II
Other Memory: UHS-I compliant  
Dual Card Slots: No No
RAW Capture Support: Yes Yes
Uncompressed Format: 12-bit RAW (.PEF, .DNG) 14-bit .CR3 RAW, C-RAW, RAW+JPEG
Movie File Format: MPEG-4 AVC/H.264 (MOV) MP4 (Video: MPEG-4 AVC / H.264, Audio: Linear PCM or AAC)
Included Memory: No memory included No memory included
Included Memory Type:    
Connectivity
Built-In Wi-Fi: No Yes
NFC: No No
Bluetooth: No Yes
Built-In GPS: No No
Microphone Jack: No Yes
Headphone Jack: No Yes
External Connections: USB 2.0 High Speed USB 2.0 High Speed,Bluetooth,WiFi
PictBridge Compliant: No Yes
DPOF Compliant: Yes Yes
Remote Control: Yes Yes
Remote Control Type: Optional IR Optional wired, Bluetooth or Wi-Fi
Connections (extended): Micro (Type D) HMDI Mini (Type-C) HDMI, Type-C USB 2.0, Remote Jack, 3.5mm Stereo Mic and Headphone Jacks
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution):   <0.3
Cycle time for RAW shooting in single shot mode (seconds per frame):    
Buffer size for RAW shooting in single shot mode (frames):    
Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot):   0.34
Camera penalizes early shutter press? No
JPEG shooting speed in burst mode (fps, max resolution): 5.4 5.0
Buffer size for JPEG shooting in burst mode (frames, max resolution): 20 Unlimited
RAW shooting speed in burst mode (fps):   5.0
Buffer size for RAW shooting in burst mode (frames):   Unlimited
RAW+JPEG shooting speed in burst mode (fps):   5.0
Buffer Size for RAW+JPEG shooting in burst mode (frames):   130
Shutter lag (full AF, wide/mid):   0.22 seconds
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):    
Shutter lag (prefocused, live view - DSLR):    
Shutter Lag (manual focus):   0.174 seconds
Shutter lag (full AF, with flash):    
Shutter Lag (prefocused):   0.055 seconds
Shutter Lag (notes):    
Startup Time:   1.1 seconds
Play -> Record Time:   0.6 seconds
Flash cycle time, full power:    
Power
Battery Life, Stills (CIPA Rating Monitor/Live View):   250 shots
Battery Life, Still (CIPA Rating OVF/EVF): 480 shots 210 shots
Battery Life, Video:    
Battery Form Factor: Proprietary D-LI109 Proprietary
Usable Battery Types: Lithium-ion rechargeable LP-E17 Lithium-ion rechargeable
Batteries Included: 1 x Proprietary D-LI109 Lithium-ion rechargeable 1 x Proprietary LP-E17 Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): Yes Yes
Dedicated Battery Charger Included: Yes
Internal Charging Supported: Yes
Software
Included Software: Digital Camera Utility 5 Software CD-ROM  
OS Compatibility:    
Miscellaneous
Notes & Features: The K-S1 comes in 3 standard colors: black, blue, and white. In addition, two separate color collections are available; The Fabric Collection, containing 4 unique colors such as cotton beige and tweed gray – and the Night Sky Collection, with 5 more elegant colors like Sunset Orange, Dawn Purple, and Midnight Black.