• 35mm 861.6mm2
  • 36.4 megapixels
  • ISO 100 - 25,600
  • APS-C 366.6mm2
  • 20.1 megapixels
  • ISO 100 - 51,200
  • Detailed specifications
  • Sony Alpha ILCE-A7R
  • Pentax K-S1
Links
Prices: Compare Prices Compare Prices
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:    
Successor: Sony A7R II
A7R vs A7R II
 
General
Model Number: A7R K-S1
Alternate Model Number(s): ILCE-7R  
Camera Format: Compact System Camera SLR
Currently Manufactured: Yes No
Retail Price: $2299.99 $799.95
Street Price: $1,399.50 $501.65
Date Available: 2013-12-07 2014-09-15
Tripod Mount: Yes Yes
Weight: 16.4 oz (465 g)
includes batteries
27.0 oz (765 g)
includes batteries, kit lens
Size: 5.0 x 3.7 x 1.9 in.
(127 x 94 x 48 mm)
4.8 x 3.7 x 2.8 in.
(121 x 93 x 70 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CMOS
Sensor Manufacturer: Sony  
Effective Megapixels: 36.4 20.1
Sensor Format: 35mm APS-C
Sensor size: 861.6mm2 (35.90mm x 24.00mm) 366.6mm2 (23.50mm x 15.60mm)
Approximate Pixel Pitch: 4.88 microns 4.29 microns
Focal Length Multiplier: 1.0x 1.5x
Aspect Ratio: 3:2 3:2
Color Filter Type: RGBG RGBG
Anti Aliasing Filter: None Optional
Self-Cleaning: Yes Yes
Sensor shift image stabilization: No Yes
On-Sensor Phase Detect: No No
DxO Sensor Score: 95 78
DxO Color Depth Score (bits): 25.6 23.5
DxO Dynamic Range Score (evs): 14.1 13.0
DxO Maximum Effective ISO Score (iso): 2,746 1,061
Image Capture
Image Resolution: 7360 x 4912 (36.2 MP, 3:2),
4800 x 3200 (15.4 MP, 3:2),
3680 x 2456 (9.0 MP, 3:2),
4800 x 3200 (15.4 MP, 3:2),
3680 x 2456 (9.0 MP, 3:2),
2400 x 1600 (3.8 MP, 3:2),
7360 x 4144 (30.5 MP, 16:9),
4800 x 2704 (13.0 MP, 16:9),
3680 x 2072 (7.6 MP, 16:9),
4800 x 3200 (15.4 MP, 3:2),
3680 x 2456 (9.0 MP, 3:2),
2400 x 1600 (3.8 MP, 3:2),
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)
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)
Image File Format: JPEG, RAW (14-bit ARW 2.3), RAW+JPEG JPEG (EXIF 2.30), 12-bit RAW (.PEF, .DNG)
Continuous-mode frames/second: 4.0 5.4
Video Capture
Can take movies: Yes Yes
Movie Resolution: 1920x1080 (60p(28Mbps)/​60i(24/​17Mbps)/​24p(24/​17Mbps))
1440x1080 (30p(12Mbps))
640x480 (30p(3Mbps))
1920x1080 (30p/​25p/​24p)
1280x720 (60p/​50p)
Movie File Format: AVCHD 2.0 / MP4; Audio: Dolby Digital (AC-3) / MPEG-4 AAC-LC, stereo MPEG-4 AVC/H.264 (MOV)
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: Sony E Pentax K (KA/KAF/KAF2)
Lens: n/a smc Pentax-DA L 18-55mm f/3.5-5.6 AL
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: n/a 52.0mm
Thread Type: n/a n/a
Optical Image Stabilization: No No
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: Contrast-detect AF: Multi Point (25 points) / Center-weighted / Flexible Spot (S/M/L) / Zone SAFOX IX i+, TTL phase-matching -11 point (9 cross type focus points in the center)
Auto Focus Assist Light? Yes Yes
Manual Focus: Yes Yes
Viewfinder
Viewfinder: EVF / LCD Optical / LCD
Viewfinder Type: EVF: 1.3cm (0.5-inch) 2.4M-dot XGA color OLED, 100% coverage, 0.71x magnification, -4.0 to +3.0 diopter, eye sensor SLR type; eye-level pentaprism, ~100% coverage, 0.95x mag., 20.5mm eyepoint, -2.5 to +1.5 diopter
Focus Peaking: Yes Yes
EVF Resolution: 2,359,296 dots (786,432 pixels) n/a
Viewfinder Magnification (35mm equivalent): 0.71x 0.63x
Viewfinder Magnification (nominal/claimed): 0.71x 0.95x
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) 921,600 dots (307,200 px)
Touchscreen: No No
Articulating Screen: Yes No
Tilt Swivel Screen: No No
Selfie Screen: No No
Max Playback Zoom: 23.0x 16.0x
Top Deck Display: No No
Exposure
Maximum ISO (native): 25600 51200
Minimum ISO (native): 100 100
ISO Settings: Auto (100-6400), ISO 100 - 25600; Low extention to ISO 50; up to 51200 in MFNR mode Auto, 100-51200 (1, 1/2 or 1/3 EV steps)
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Daylight, Shade, Cloudy, Incandescent, Fluorescent (4 settings), Flash, Custom, Color Temp./ Filter (2500-9900K with 15-step Magenta/Green compensation), Underwater 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
Shutter Speed Range: 1/8000 - 30 sec 1/6000 - 30 sec
Bulb Mode: Yes Yes
Exposure Compensation: +/- 5.0EV in 0.3EV steps +/- 5.0EV in 0.3EV steps
Metering Modes: 1200-zone Evaluative Multi-segment, Center-weighted, Spot TTL open-aperture: 77 segment Multi, Center-weighted, Spot
Program Auto Exposure: Yes Yes
Aperture Priority: Yes Yes
Shutter Priority: Yes Yes
Full Manual Exposure: Yes Yes
Creative Exposure Modes: 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), 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
Self Timer: 2 or 10; 3/5 shots after 10 seconds 2 or 12 seconds
Time Lapse (intervalometer):    
High Resolution Composite: No No
Flash
Built-in Flash: No Yes
Flash Modes: Flash off, Auto flash, Fill-flash, Slow Sync., Rear Sync., Hi-speed Sync, Wireless; Red-eye reduction: On/Off 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 Guide Number (ISO 100): n/a 10.0 m / 32.8 ft.
Flash Range Description: n/a Depends on lens
Max Flash Sync: 1/160 1/180
Flash Exposure Compensation: +/- 3.0 EV in 0.3EV steps -2 to +1 EV in 0.5EV steps
External Flash Connection: Multi Interface Hot shoe Hot Shoe
Built-In Wireless Flash Control:    
Image Storage
Usable Memory Types: MS PRO Duo / SD / SDHC / SDXC 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: RAW (14-bit ARW 2.3), RAW+JPEG 12-bit RAW (.PEF, .DNG)
Movie File Format: AVCHD 2.0 / MP4; Audio: Dolby Digital (AC-3) / MPEG-4 AAC-LC, stereo MPEG-4 AVC/H.264 (MOV)
Included Memory: No memory included No memory included
Included Memory Type:    
Connectivity
Built-In Wi-Fi: Yes No
NFC: Yes No
Bluetooth: No No
Built-In GPS: No No
Microphone Jack: Yes No
Headphone Jack: Yes No
External Connections: USB 2.0 High Speed,WiFi USB 2.0 High Speed
PictBridge Compliant: No No
DPOF Compliant: Yes Yes
Remote Control: Yes Yes
Remote Control Type: Optional via RM-VPR1, USB or Wi-Fi Optional IR
Connections (extended): Multi-Terminal Micro USB (with remote support), Type-D Micro HDMI, Microphone and Headphone jacks Micro (Type D) HMDI
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): 0.84  
Cycle time for RAW shooting in single shot mode (seconds per frame): 0.79  
Buffer size for RAW shooting in single shot mode (frames): Unlimited  
Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot): 0.84  
Camera penalizes early shutter press? No
JPEG shooting speed in burst mode (fps, max resolution): 4.0 5.4
Buffer size for JPEG shooting in burst mode (frames, max resolution): 15 20
RAW shooting speed in burst mode (fps): 4.0  
Buffer size for RAW shooting in burst mode (frames): 15  
RAW+JPEG shooting speed in burst mode (fps): 4.0  
Buffer Size for RAW+JPEG shooting in burst mode (frames): 14  
Shutter lag (full AF, wide/mid): 0.36 seconds  
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):    
Shutter lag (prefocused, live view - DSLR):    
Shutter Lag (manual focus): 0.261 seconds  
Shutter lag (full AF, with flash):    
Shutter Lag (prefocused): 0.163 seconds  
Shutter Lag (notes): Full Autofocus lag, Multi-area AF mode = 0.362s  
Startup Time: 2.0 seconds  
Play -> Record Time: 0.9 seconds  
Flash cycle time, full power:    
Power
Battery Life, Stills (CIPA Rating Monitor/Live View): 340 shots  
Battery Life, Still (CIPA Rating OVF/EVF): 270 shots 480 shots
Battery Life, Video:    
Battery Form Factor: Proprietary Proprietary D-LI109
Usable Battery Types: NP-FW50 Lithium-ion rechargeable Lithium-ion rechargeable
Batteries Included: 1 x Proprietary NP-FW50 Lithium-ion rechargeable 1 x Proprietary D-LI109 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: Image Data Converter 4, PlayMemories Home Digital Camera Utility 5 Software CD-ROM
OS Compatibility: Windows Vista/7/8; Mac OS X 10.6 or later. (PlayMemories Home is Windows only.)  
Miscellaneous
Notes & Features: World's smallest, lightest, fully-featured interchangeable lens full-frame camera (along with Sony A7); No OLPF; Compatible with Sony's E-mount lens system and new full-frame lenses. 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.