• APS-C 366.6mm2
  • 20.1 megapixels
  • ISO 100 - 51,200
  • 4/3 224.9mm2
  • 16.1 megapixels
  • ISO 200 - 25,600
  • Detailed specifications
  • Pentax K-S1
  • Olympus OM-D E-M5 II
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Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:   Olympus E-M5
E-M5 vs E-M5 II
Successor:    
General
Model Number: K-S1 E-M5 II
Alternate Model Number(s):    
Camera Format: SLR Compact System Camera
Currently Manufactured: No Yes
Retail Price: $799.95 $999.99
Street Price: $498.69 $899.00
Date Available: 2014-09-15 2015-02-21
Tripod Mount: Yes Yes
Weight: 27.0 oz (765 g)
includes batteries, kit lens
16.5 oz (469 g)
includes batteries
Size: 4.8 x 3.7 x 2.8 in.
(121 x 93 x 70 mm)
4.9 x 3.3 x 1.8 in.
(124 x 85 x 45 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS Live MOS
Sensor Manufacturer:    
Effective Megapixels: 20.1 16.1
Sensor Format: APS-C 4/3
Sensor size: 366.6mm2 (23.50mm x 15.60mm) 224.9mm2 (17.30mm x 13.00mm)
Approximate Pixel Pitch: 4.29 microns 3.75 microns
Focal Length Multiplier: 1.5x 2.0x
Aspect Ratio: 3:2 4:3
Color Filter Type: RGBG RGBG
Anti Aliasing Filter: Optional None
Self-Cleaning: Yes Yes
Sensor shift image stabilization: Yes Yes
On-Sensor Phase Detect: No No
DxO Sensor Score: 78 73
DxO Color Depth Score (bits): 23.5 23.0
DxO Dynamic Range Score (evs): 13.0 12.4
DxO Maximum Effective ISO Score (iso): 1,061 908
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)
4608 x 3456 (15.9 MP, 4:3),
3200 x 2400 (7.7 MP, 4:3),
2560 x 1920 (4.9 MP, 4:3),
1280 x 960 (1.2 MP, 4:3),
640 x 480 (0.3 MP, 4:3),
7296 x 5472 (39.9 MP, 4:3),
9216 x 6912 (63.7 MP, 4:3)
Image File Format: JPEG (EXIF 2.30), 12-bit RAW (.PEF, .DNG) JPEG, MPO, 12-bit RAW, RAW + JPEG
Continuous-mode frames/second: 5.4 10.4
Video Capture
Can take movies: Yes Yes
Movie Resolution: 1920x1080 (30p/25p/24p)
1280x720 (60p/50p)
1920x1080 (60p/50p/30p/25p/24p)
1280x720 (60p/50p/30p/25p/24p)
640x480 (30p)
1280x720 (10p)
Movie File Format: MPEG-4 AVC/H.264 (MOV) MOV (MPEG-4 AVC/H.264 with stereo sound), AVI (Motion JPEG)
Composite Video Out: Yes
NTSC/PAL Switchable Video: n/a Yes
Video Usable as Viewfinder: n/a No
HD Video Out: Yes Yes
HD Video Connection: HDMI HDMI
Lens & Optics
Lens Mount: Pentax K (KA/KAF/KAF2) Micro Four Thirds
Lens: smc Pentax-DA L 18-55mm f/3.5-5.6 AL n/a
Focal Length (35mm equivalent): 27 - 83mm  
Focal Length (actual): 18 - 55mm  
Zoom Ratio: 3.06x  
Aperture Range: f/3.5 - f/22 (wide) / f/5.6 - f/40 (tele)  
Integrated ND Filter: No No
Normal Focus Range: 25 cm to Infinity
9.8 in to Infinity
 
Macro Focus Range:    
Filter Thread: 52.0mm n/a
Thread Type: n/a n/a
Optical Image Stabilization: No No
Digital Zoom: Yes
Digital Zoom Values:   2x
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) High-speed Contrast-detect AF: 81-area multiple AF / All target, Group target area (9-area), Single target (Normal/Small) / Eye Detection (Nearer, Left, Right) / Magnified (up to 14x, over 800 AF points)
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 LCD, 1.30x - 1.48x magnification, 100% coverage, 21mm eyepoint, -4 to +2 diopter, eye sensor
Focus Peaking: Yes Yes
EVF Resolution: n/a 2,360,000 dots
Viewfinder Magnification (35mm equivalent): 0.63x 0.74x
Viewfinder Magnification (nominal/claimed): 0.95x 1.48x
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) 1,037,000 dots (345,667 px)
Touchscreen: No Yes
Articulating Screen: No Yes
Tilt Swivel Screen: No Yes
Selfie Screen: No Yes
Max Playback Zoom: 16.0x 14.0x
Top Deck Display: No No
Exposure
Maximum ISO (native): 51200 25600
Minimum ISO (native): 100 200
ISO Settings: Auto, 100-51200 (1, 1/2 or 1/3 EV steps) AUTO: ISO Low (100) - 25600 (customizable, Default 200-1600) / Manual ISO Low (100) - 25600, 1/3 or 1 EV steps selectable
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, Lamp, Fluorescent, Daylight, Flash, Cloudy, Shade, Custom WB, One-touch WB
Shutter Speed Range: 1/6000 - 30 sec 1/16000 - 60 sec
Bulb Mode: Yes Yes
Exposure Compensation: +/- 5.0EV in 0.3EV steps +/- 5.0EV in 0.3EV steps
Metering Modes: TTL open-aperture: 77 segment Multi, Center-weighted, Spot Digital ESP metering (324-area multi pattern metering), Center weighted average metering, Spot metering, Spot metering with highlight control, Spot metering with shadow control
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 select AE (Portrait, e-Portrait, Landscape, Landscape + Portrait, Sport, Hand-held Starlight*1, Night scene, Night + Portrait, Children, High Key, Low Key, DIS mode, Macro, Nature Macro, Candle, Sunset, Documents, Panorama, Fireworks, Beach & Snow, Fisheye Conv., Wide Conv., Macro Conv., Panning, 3D*2), Underwater wide / macro, HDR1, HDR2, Art Filters (14). *1 8 images automatically shot and combined into a single image composite *2 For 3D lens(H-FT012 by Panasonic) only, still photo only
Self Timer: 2 or 12 seconds 2, 10, Custom seconds
Time Lapse (intervalometer):   Yes
High Resolution Composite: No 64.0 megapixels
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) Flash Auto, Redeye, Fill-in, Flash Off, Red-eye Slow sync.(1st curtain), Slow sync.(1st curtain), Slow sync.(2nd curtain), Manual(1/1 (FULL) - 1/64)
Flash Guide Number (ISO 100): 10.0 m / 32.8 ft. 9.1 m / 29.9 ft.
Flash Range Description: Depends on lens Bundled FL-LM3 flash has GN of 9.1m/ISO 100
Max Flash Sync: 1/180 1/250
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, PC Sync Terminal
Built-In Wireless Flash Control:    
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) 12-bit RAW, RAW + JPEG
Movie File Format: MPEG-4 AVC/H.264 (MOV) MOV (MPEG-4 AVC/H.264 with stereo sound), AVI (Motion JPEG)
Included Memory: No memory included No memory included
Included Memory Type:    
Connectivity
Built-In Wi-Fi: No Yes
NFC: No No
Bluetooth: No No
Built-In GPS: No No
Microphone Jack: No Yes
Headphone Jack: No No
External Connections: USB 2.0 High Speed USB 2.0 High Speed,WiFi
PictBridge Compliant: No Yes
DPOF Compliant: Yes Yes
Remote Control: Yes Yes
Remote Control Type: Optional IR Optional Remote cable RM-UC1 or via Wi-Fi
Connections (extended): Micro (Type D) HMDI Micro HDMI (Type-D), combined AV/USB connector, 3.5mm stereo mini jack
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution):   0.73
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):   0.76
Camera penalizes early shutter press? No
JPEG shooting speed in burst mode (fps, max resolution): 5.4 10.4
Buffer size for JPEG shooting in burst mode (frames, max resolution): 20 18
RAW shooting speed in burst mode (fps):   10.4
Buffer size for RAW shooting in burst mode (frames):   13
RAW+JPEG shooting speed in burst mode (fps):   10.3
Buffer Size for RAW+JPEG shooting in burst mode (frames):   13
Shutter lag (full AF, wide/mid):   0.14 seconds
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):    
Shutter lag (prefocused, live view - DSLR):    
Shutter Lag (manual focus):   0.068 seconds
Shutter lag (full AF, with flash):   0.34 seconds
Shutter Lag (prefocused):   0.046 seconds
Shutter Lag (notes):    
Startup Time:   0.8 seconds
Play -> Record Time:   0.5 seconds
Flash cycle time, full power: 0.0 seconds 4.5 seconds
Power
Battery Life, Stills (CIPA Rating Monitor/Live View):   310 shots
Battery Life, Still (CIPA Rating OVF/EVF): 480 shots 310 shots
Battery Life, Video:    
Battery Form Factor: Proprietary D-LI109 Proprietary BLN-1
Usable Battery Types: Lithium-ion rechargeable Lithium-ion rechargeable
Batteries Included: 1 x Proprietary D-LI109 Lithium-ion rechargeable 1 x Proprietary BLN-1 Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): Yes Yes
Dedicated Battery Charger Included: Yes
Internal Charging Supported: No
Software
Included Software: Digital Camera Utility 5 Software CD-ROM Olympus Viewer 3 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. 16-megapixel Live MOS sensor; TruePic VII image processor; class-leading 5-axis sensor-shift image stabilization; 10fps burst mode; new High-Res Shot mode generates 40MP JPEGs and 64MP RAW files; improved 1080p60 video; 3-inch vari-angle touchscreen; built-in Wi-Fi; dust, splash and freezeproof construction. Available in black or silver.