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Overview
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.
Rounding out the a7S's imaging capabilities, both a 3.0" 921.6k-dot tilting LCD monitor and 2.36 million-dot OLED electronic viewfinder are available for image monitoring and review. Built-in Wi-Fi connectivity, with support for NFC, is available, too, for instant sharing of imagery from the camera as well as remote camera control from a linked mobile device.
The sensor's design also features a new-generation RGB color filter array, as well as a gapless on-chip lens design. Together, these two technologies enable truly efficient light-gathering abilities that further reinforce the low noise, high-sensitivity design. Furthermore, an anti-reflective coating has also been applied to the seal glass of the image sensor to minimize surface reflections, glare, and ghosting for contrast-rich, color-neutral imagery.
Full Pixel Read-Out with Clean HDMI Out for 4K Recording
Line-Skipping has been the Achilles Heel of video recording DSLR and Mirrorless cameras since video recording was first introduced. Most full-frame and APS-C still cameras have extremely high pixel counts, which is great for still photography, but makes utilizing the whole sensor technically infeasible when recording video since scaling down, say a 36 megapixel image in real time would require a much more expensive image processor and generate more heat than such a compact body could handle. So traditionally these cameras skip lines when recording video, leading to major aliasing and moiré from the large sample gaps as well as decreased resolution and increased noise. However, the lower resolution sensor of the a7S is designed for video recording and features a full sensor readout without any line skipping. This means you will see a sharp image devoid of major aliasing and moiré whether recording internally at 1080p or externally in UHD 4K.
-3840 x 2160 (30p/24p)
-1920 x 1080 (60p/24p)
-1920 x 1080 (60i), YCbCr 4:2:2 8-bit/RGB 8-bit
Customizable Color Profiles and S-Log2 Gamma
To make sure the a7S is able to use its extensive dynamic range while recording video it incorporates extensive customizable color and gamma controls. Users can adjust the gamma, black level, knee, color level, and more. Also users can use the same S-Log2 Gamma Curve that is found on high end Sony Cinema cameras that squeezes up to 1300% more dynamic range into the video signal then traditional REC709, for increased post-production flexibility.
Live Video Overlays
The a7S features many of the same real-time visual overlays and aids that professional video users have come to rely on. These include focus peaking to aid in manual focusing, zebra markers to help judge overexposure, and an audio level overlay for mixing audio. Also focus magnification is available for checking critical focus. These are available in both viewfinder and LCD display.
Body Design
Revolving around a compact, sleek body design, the a7S features both a large rear LCD monitor as well as a bright electronic viewfinder. The rear 3.0" 921.6k-dot Xtra Fine LCD features a tilting design (up 90° and down 45°) to benefit working from both high and low angles. Also benefitting visibility with the rear monitor is the incorporation of WhiteMagic technology, which noticeably increases brightness for easier viewing in sunlit conditions. When shooting at eye-level, the 0.5" XGA OLED electronic viewfinder features a high 0.71x magnification and a 2.36 million-dot resolution for precise monitoring capabilities.
Additionally, PlayMemories Camera Apps are also supported via the built-in Wi-Fi connection, and allow you to personalize the camera's features depending on specific shooting styles. Apps are available to suit creating portraits, detailed close-ups, sports, time lapse, motion shot, and other specific types of imagery.
feature:
Specifications
Lens Mount | Sony E-Mount |
Camera Format | Full-Frame |
Pixels | Actual: 12.4 Megapixel, Effective: 12.2 Megapixel |
Max Resolution | 12MP: 4240 x 2832 |
Aspect Ratio | 4:3, 16:9 |
Sensor Type / Size | CMOS, 35.8 x 23.9 mm |
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 |
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) |
Video Clip Length | Not Specified By Manufacturer |
Audio Recording | Built-in Mic: With Video, Stereo, Optional External Mic: With Video |
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 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% |
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 |
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 |
Continuous Shooting | Up to 5 fps |
Self Timer | 10 seconds, 2 seconds |
Wi-Fi Capable | Yes |
Software System Requirements | Windows: Vista (SP2), 7 (SP1), 8, Mac: OS X 10.6 or later |
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) |
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 |
Connectivity | 1/8" Headphone, 1/8" Microphone, DC Input, HDMI D (Micro), Micro-USB |
Video Recording | Yes, NTSC |
ISO Sensitivity | Auto, 100-102400 (Extended Mode: Auto, 50-409600) |
File Formats | Still Images: JPEG, RAW, Movies: MP4, MPEG-4 AVC/H.264, Audio: AAC LC, AC3, Dolby Digital 2ch, Linear PCM |
Flash Modes | Auto, Fill-in, Hi-Speed Sync, Off, Rear Sync, Red-eye Reduction, Slow Sync, Wireless |
Warranty & Returns
Return Period | 15 Days - Unopened |
Defective Exchange | 30 Days |
Reviews
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