• APS-C 366.6mm2
  • 20.1 megapixels
  • ISO 100 - 51,200
  • 35mm 855.6mm2
  • 24.3 megapixels
  • ISO 100 - 25,600
  • Detailed specifications
  • Pentax K-S1
  • Sony Alpha ILCE-A7 II
Links
Prices: Compare Prices Compare Prices
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:   Sony A7
A7 vs A7 II
Successor:   Sony A7 III
A7 II vs A7 III
General
Model Number: K-S1 A7 II
Alternate Model Number(s):   ILCE-7M2
Camera Format: SLR Compact System Camera
Currently Manufactured: No Yes
Retail Price: $799.95 $1999.99
Street Price: $501.65 $1,148.00
Date Available: 2014-09-15 2014-12-09
Tripod Mount: Yes Yes
Weight: 27.0 oz (765 g)
includes batteries, kit lens
32.8 oz (930 g)
includes batteries, kit lens
Size: 4.8 x 3.7 x 2.8 in.
(121 x 93 x 70 mm)
5.0 x 3.8 x 2.4 in.
(127 x 96 x 60 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CMOS
Sensor Manufacturer:   Sony
Effective Megapixels: 20.1 24.3
Sensor Format: APS-C 35mm
Sensor size: 366.6mm2 (23.50mm x 15.60mm) 855.62mm2 (35.80mm x 23.90mm)
Approximate Pixel Pitch: 4.29 microns 5.97 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 Yes
On-Sensor Phase Detect: No Yes
DxO Sensor Score: 78 90
DxO Color Depth Score (bits): 23.5 24.9
DxO Dynamic Range Score (evs): 13.0 13.6
DxO Maximum Effective ISO Score (iso): 1,061 2,449
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)
6000 x 4000 (24.0 MP, 3:2),
3936 x 2624 (10.3 MP, 3:2),
3008 x 2000 (6.0 MP, 3:2),
3936 x 2624 (10.3 MP, 3:2),
3008 x 2000 (6.0 MP, 3:2),
1968 x 1312 (2.6 MP, 3:2),
6000 x 3376 (20.3 MP, 16:9),
3936 x 2216 (8.7 MP, 16:9),
3008 x 1688 (5.1 MP, 16:9),
3936 x 2216 (8.7 MP, 16:9),
3008 x 1688 (5.1 MP, 16:9),
1968 x 1112 (2.2 MP, Other),
12416 x 1856 (23.0 MP, Other),
8192 x 1856 (15.2 MP, Other),
2160 x 5536 (12.0 MP, Other),
2160 x 3872 (8.4 MP, Other)
Image File Format: JPEG (EXIF 2.30), 12-bit RAW (.PEF, .DNG) JPEG, RAW (14-bit ARW 2.3), 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)
1920x1080 (60p/​60i/​30p/​24p)
1440x1080 (30p)
640x480 (30p)
Movie File Format: MPEG-4 AVC/H.264 (MOV) XAVC S / AVCHD 2.0 / MP4; Stereo Audio: LPCM / Dolby Digital (AC-3) / MPEG-4 AAC-LC
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) Sony E
Lens: smc Pentax-DA L 18-55mm f/3.5-5.6 AL Sony FE 28-70mm f/3.5-5.6 OSS SEL2870
Focal Length (35mm equivalent): 27 - 83mm 28 - 70mm
Focal Length (actual): 18 - 55mm 28 - 70mm
Zoom Ratio: 3.06x 2.50x
Aperture Range: f/3.5 - f/22 (wide) / f/5.6 - f/40 (tele) f/3.5-22 (W) / f/5.6-36 (T)
Integrated ND Filter: No No
Normal Focus Range: 25 cm to Infinity
9.8 in to Infinity
40 cm to Infinity
15.7 in to Infinity
Macro Focus Range:    
Filter Thread: 52.0mm 55.0mm
Thread Type: n/a n/a
Optical Image Stabilization: No Yes
Digital Zoom: Yes
Digital Zoom Values:   Up to 4x; up to 2x Clear Image Digital Zoom
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) Fast Hybrid AF (Phase-detect + Contrast-detect AF): 117 points (phase-detection AF), 25 points (contrast-detection AF); Multi Point (25 points) / Center-weighted / Flexible Spot (S/M/L) / Zone
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: 0.5-inch (1.30cm) 2.4M-dot XGA color OLED, 100% coverage, 0.71x magnification, -4.0 to +3.0 diopter
Focus Peaking: Yes Yes
EVF Resolution: n/a 2,359,296 dots (786,432 pixels)
Viewfinder Magnification (35mm equivalent): 0.63x 0.71x
Viewfinder Magnification (nominal/claimed): 0.95x 0.71x
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) 1,228,800 dots (307,200 px)
Touchscreen: No No
Articulating Screen: No Yes
Tilt Swivel Screen: No No
Selfie Screen: No No
Max Playback Zoom: 16.0x 18.8x
Top Deck Display: No No
Exposure
Maximum ISO (native): 51200 25600
Minimum ISO (native): 100 100
ISO Settings: Auto, 100-51200 (1, 1/2 or 1/3 EV steps) Auto (100-6400), 100, 200, 400, 800, 1600, 3200, 6400, 12800, 25600; Low extention to ISO 50; up to 51200 in MFNR mode
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, Daylight, Shade, Cloudy, Incandescent, Fluorescent (4 settings), Flash, Custom, Color Temp./ Filter (2500-9900K with 15-step Magenta/Green compensation), Underwater
Shutter Speed Range: 1/6000 - 30 sec 1/8000 - 30 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 1200-zone Evaluative Multi-segment, Center-weighted, Spot
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 Modes: Portrait, Landscape, Macro, Sports Action, Sunset, Night Portrait, Night Scene, Hand-held Twilight, Anti Motion Blur; Sweep Panorama; HDR: Auto Exposure Difference, Exposure difference Level (1-6 EV at 1.0 EV step),
Self Timer: 2 or 12 seconds 2 or 10; 3/5 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) Flash off, Auto flash, Fill-flash, Slow Sync., Rear Sync., Hi-speed Sync, Wireless; Red-eye reduction: On/Off
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 1/250
Flash Exposure Compensation: -2 to +1 EV in 0.5EV steps +/- 3.0 EV in 0.3EV steps
External Flash Connection: Hot Shoe Multi Interface Hot shoe
Built-In Wireless Flash Control:   No
Image Storage
Usable Memory Types: SD / SDHC / SDXC MS PRO Duo / SD / SDHC / SDXC
UHS Support: UHS-I UHS-I
Other Memory: UHS-I compliant  
Dual Card Slots: No No
RAW Capture Support: Yes Yes
Uncompressed Format: 12-bit RAW (.PEF, .DNG) RAW (14-bit ARW 2.3), RAW+JPEG
Movie File Format: MPEG-4 AVC/H.264 (MOV) XAVC S / AVCHD 2.0 / MP4; Stereo Audio: LPCM / Dolby Digital (AC-3) / MPEG-4 AAC-LC
Included Memory: No memory included No memory included
Included Memory Type:    
Connectivity
Built-In Wi-Fi: No Yes
NFC: No Yes
Bluetooth: No No
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,WiFi
PictBridge Compliant: No No
DPOF Compliant: Yes Yes
Remote Control: Yes Yes
Remote Control Type: Optional IR Optional via RM-VPR1, USB or Wi-Fi
Connections (extended): Micro (Type D) HMDI Multi-Terminal Micro USB (with remote support), Type-D Micro HDMI, 3.5mm Microphone and 3.5mm Headphone jacks
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution):   0.74
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):   0.79
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 52
RAW shooting speed in burst mode (fps):   5.0
Buffer size for RAW shooting in burst mode (frames):   28
RAW+JPEG shooting speed in burst mode (fps):   5.0
Buffer Size for RAW+JPEG shooting in burst mode (frames):   24
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):   0.151 seconds
Shutter lag (full AF, with flash):    
Shutter Lag (prefocused):   0.053 seconds
Shutter Lag (notes):   Full AF lag with electronic first curtain disabled (enabled is the default) = 0.359 second
Startup Time:   1.7 seconds
Play -> Record Time:   1.0 seconds
Flash cycle time, full power:    
Power
Battery Life, Stills (CIPA Rating Monitor/Live View):   350 shots
Battery Life, Still (CIPA Rating OVF/EVF): 480 shots 270 shots
Battery Life, Video:    
Battery Form Factor: Proprietary D-LI109 Proprietary
Usable Battery Types: Lithium-ion rechargeable NP-FW50 Lithium-ion rechargeable
Batteries Included: 1 x Proprietary D-LI109 Lithium-ion rechargeable 1 x Proprietary NP-FW50 Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): Yes Yes
Dedicated Battery Charger Included: No
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. In-body 5-axis sensor-shift image stabilization (up to 4.5 stops of corrections), White Magic tilting LCD (170 degrees up, 41 degrees down), XAVC S, AVCHD 2.0 & MP4 videos, S-Log2 and S-Gamut, improved grip and shutter button, stronger lens mount, optional VG-C2EM battery grip.