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- Description
- Specifications
The Sony Alpha a7S Mirrorless Digital Camera features a full-frame 12.2MP Exmor CMOS sensor and BIONZ X image processor to enable notable video and still image quality with an expansive dynamic range, low noise, and extended sensitivity to ISO 409600. At the sensor level, this full-frame sensor features a unique on-chip gapless lens design, which incorporates small lenses between neighboring pixels in order to increase light-gathering efficiency and promote greater image quality across the entirety of the sensor plane. The sensor and processor combination also avails a wealth of speed throughout the camera system, including a top continuous shooting rate of 5 fps, support for 4K video recording, and a fast 25-point contrast-detection AF system with sensitivity to -4 EV.
Lens Mount Sony E-Mount
Camera Format Full-Frame
Pixels Actual: 12.4 Megapixel
Effective: 12.2 Megapixel
Max Resolution 12 MP: 4240 x 2832
Aspect Ratio 3:2, 4:3
Sensor Type / Size CMOS, 35.8 x 23.9 mm
File Formats Still Images: JPEG, RAW
Movies: MP4, MPEG-4 AVC/H.264
Audio: AAC LC, AC3, Dolby Digital 2ch, Linear PCM
Bit Depth 14-bit
Dust Reduction System Yes
Memory Card Type SD
SDHC
SDXC
Memory Stick PRO Duo (High Speed)
Memory Stick PRO HG-Duo
Memory Stick XC-HG Duo
AV Recording
Video Recording Yes, NTSC
Resolution 1920 x 1080: 60 fps, 30 fps, 24 fps
1280 x 720: 120 fps
1440 x 1080: 30 fps
640 x 480: 30 fps
Video Format High Definition
1920 x 1080p / 60 fps (50 Mbps)
1920 x 1080p / 30 fps (50 Mbps)
1920 x 1080p / 24 fps (50 Mbps)
High Definition
1280 x 720p / 120 fps (50 Mbps) (50 Mbps)
High Definition
AVCHD
1920 x 1080p / 60 fps (28 Mbps)
1920 x 1080i / 60 fps (24 Mbps)
1920 x 1080i / 60 fps (17 Mbps)
High Definition
AVCHD
1920 x 1080p / 24 fps (24 Mbps)
1920 x 1080p / 24 fps (17 Mbps)
High Definition
MP4
1440 x 1080p / 30 fps (12 Mbps)
Standard Definition
MP4
640 x 480p / 30 fps (3 Mbps)
Aspect Ratio 4:3, 16:9
Video Clip Length Not Specified By Manufacturer
Audio Recording Built-in Mic: With Video, Stereo
Optional External Mic: With Video
Focus Control
Focus Type Auto & Manual
Focus Mode Continuous-servo AF (C), Direct Manual Focus (DMF), Manual Focus (M), Single-servo AF (S)
Autofocus Points Contrast Detection: 25
Viewfinder/Display
Viewfinder Type Electronic
Viewfinder Size 0.5"
Viewfinder Pixel Count 2,359,296
Viewfinder Eye Point 27.00 mm
Viewfinder Coverage 100%
Viewfinder Magnification Approx. 0.71x
Diopter Adjustment - 4 to +3 m
Display Screen 3" Rear Screen Tilting LCD (921,600)
Screen Coverage 100%
Exposure Control
ISO Sensitivity Auto, 100-102400 (Extended Mode: Auto, 50-409600)
Shutter Type: Electronic & Mechanical
Speed: 30 - 1/8000 second, Bulb Mode
Type: Electronic & Mechanical
Speed: 1/4 - 1/8000 second in Movie Mode
Remote Control RM-VPR1 (Optional)
Metering Method Center-weighted average metering, Multi-zone metering, Spot metering
Exposure Modes Modes: Aperture Priority, Auto, Intelligent Auto, Manual, Movie, Programmed Auto, Scene Selection, Shutter Priority, Superior Auto, Sweep Panorama
Metering Range: EV 3.0 - EV 20.0
Compensation: -5 EV to +5 EV (in 1/3 or 1/2 EV steps)
White Balance Modes Auto, Cloudy, Color Temperature, Color Temperature Filter, Custom, Daylight, Flash, Fluorescent (Cool White), Fluorescent (Day White), Fluorescent (Daylight), Fluorescent (Warm White), Incandescent, Shade, Underwater
Burst Rate Up to 5 fps at 12.2 MP for up to 200 frames
Up to 2.5 fps at 12.2 MP for up to 200 frames
Flash
Flash Modes Auto
Fill-in
Hi-Speed Sync
Off
Rear Sync
Red-eye Reduction
Slow Sync
Wireless
Built-in Flash No
Max Sync Speed 1 / 250 seconds
Flash Compensation -3 EV to +3 EV (in 1/3 or 1/2 EV steps)
External Flash Connection Hot Shoe, Proprietary
Performance
Continuous Shooting Up to 5 fps
Self Timer 10 seconds, 2 seconds
Connectivity 1/8" Headphone, 1/8" Microphone, DC Input, HDMI D (Micro), Micro-USB
Wi-Fi Capable Yes
Software System Requirements Windows: Vista (SP2), 7 (SP1), 8
Mac: OS X 10.6 or later
Power
Battery 1x NP-FW50 Rechargeable Lithium-ion Battery Pack, 7.2 VDC, 1080 mAh
AC Power Adapter AC-PW20 (Optional)
Operating/Storage Temperature Operating
32 to 104°F (0 to 40°C)
Physical
Dimensions (WxHxD) 5.0 x 3.7 x 1.9" / 126.9 x 94.4 x 48.2 mm
Weight 1.08 lb / 489 g with battery and memory card