Sony has announced the Alpha 7S, 4K video recording full frame mirrorless camera designed for both stills and video. The camera can read out its entire sensor fast enough to output 4:2:2 4k video over HDMI at up to 30p, without the need for line skipping or pixel binning.
The Sony A7S features a new 12.2-megapixel with a 35mm full-frame sensor, 4K movie recording, ISO 50 to 102,400 (extendable to ISO 409,600) and an improved auto focus system that remains operational down to light levels as low as -4EV.
The “S” in the camera’s name denotes “sensitivity”. In movie shooting, it offers an ISO 200 – 102,400, with extension to 409,600. In stills it offers ISO 100 – 102,400, extendable to an ISO 50 – 409,600 range.
The camera’s professional video functions include XAVC S Full HD recording at 50Mbps, time code and optional XLR audio inputs.
Sony A7s 4K Full Frame Mirrorless Camera Officially Announced
Sony A7s 4K Full Frame Mirrorless Camera Price
The new Sony A7S full-frame digital camera with 4K video recording will be available in Summer 2014. Sony has also said it is developing a movie-focused 28-135mm F4 Powerzoom lens. Pricing has not yet been announced for either product.
Sony A7s 4K Full Frame Mirrorless Camera Key Features
- Wide ISO sensitivity setting[1] from 50 to 409600 and unprecedented dynamic range
- World’s first full-frame sensor capable of full pixel read-out without pixel binning process for movie and 4K (QFHD: 3840 x 2160) HDMI video output
- Professional video functions including XAVC S Full HD recording at 50Mbps, time code and optional XLR audio inputs
- High ISO sensitivity range allows faster shutter speeds during low light shooting
- α Mount System compatible with a wide range of high quality lenses, including power zoom lens ideal for movie shooting
- Improved Fast Intelligent AF performance in light as low as EV-4
- Ultra compact, light-weight body for comfortable pro-style operation
Sony A7s 4K Full Frame Mirrorless Camera Specifications
| General | ||
| Lens mount | alpha E-mount | |
| Image sensor | ||
| Type | 35mm full frame (35.6 x 23.8mm), Exmor CMOS sensor | |
| Number of pixels (effective) | Approx. 12.2 megapixels | |
| Recording system (still images) | ||
| Recording format | JPEG (DCF Ver. 2.0, Exif Ver. 2.3, MPF baseline compliant), RAW (Sony ARW 2.3 format) |
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| RAW output | 14 bit | |
| Recording system (movies) | ||
| Recording format | XAVC S / AVCHD format Ver. 2.0 compliant / MP4 | |
| Video compression |
XAVC S: MPEG-4 AVC/H.264 | |
| AVCHD: MPEG-4 AVC/H.264 | ||
| MP4: MPEG-4 AVC/H.264 | ||
| Audio recording format |
XAVC S: LPCM, 2ch | |
| AVCHD: Dolby Digital (AC-3), 2ch, Dolby Digital Stereo Creator |
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| MP4: MPEG-4 AAC-LC, 2ch | ||
| Image size (pixels) |
XAVC S: 1920 x 1080 (60p/50Mbps, 30p/50Mbps, 24p/50Mbps), 1280 x 720 (120p/50Mbps) |
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| AVCHD: 1920 x 1080 (60p/28Mbps/PS, 60i/24Mbps/FX, 60i/17Mbps/FH, 24p/24Mbps/FX, 24p/17Mbps/FH) |
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| MP4: 1440 x 1080 (30fps/12Mbps), 640 x 480 (30fps/3Mbps) |
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| Movie functions | Audio Level Display, Audio Rec Level, Auto Slow Shutter, HDMI info. Display (On/Off selectable), Time Code/User Bit, Picture Profile, Creative Style, Picture Effect, Rec Control, Dual Video Rec, Marker Setting |
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| Picture Profile | Yes (Off / PP1-PP7) Parameters: Black level, Gamma (Movie, Still, Cine1-4, ITU709, ITU709 [800%], S-Log2), Black Gamma, Knee, Colour Mode, Colour Level, Colour Phase, Colour Depth, Detail, Copy, Reset |
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| Clean HDMI output | ||
| Output signal | 3840 × 2160(30p/24p) / 1920 × 1080(60p/60i/24p)YCbCr 4:2:2 8bit/ RGB 8bit | |
| Media | ||
| Media | Memory Stick PRO Duo, Memory Stick PRO-HG Duo, Memory Stick XC-HG Duo, SD memory card, SDHC memory card (UHS-I compliant), SDXC memory card (UHS-I compliant) |
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| Focus system | ||
| Type | Contrast-detection AF | |
| Focus point | 25 points | |
| Sensitivity range | EV -4 to EV 20 (at ISO 100 equivalent with F2.0 lens attached) |
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| Exposure control | ||
| Metering type | 1200-zone evaluative metering | |
| ISO sensitivity (Recommended Exposure Index) |
Still images: ISO 100-102400, Movies: ISO 200-102400 equivalent (both expandable to 409600,for still: expandable down to 50) |
|
| Viewfinder | ||
| Type | XGA OLED, 1.3cm (0.5 type) electronic viewfinder (colour) | |
| Total no. of dots | 2,359,296 dots | |
| Field coverage | 100% | |
| Magnification | Approx. 0.71x (with 50mm lens at infinity, -1m-1) | |
| LCD screen | ||
| Type | 7.5cm (3.0 type) TFT drive | |
| Total number of dots | 921,600 dots | |
| Adjustable angle | Up approx. 90 degrees, down approx. 45 degrees | |
| Other features | ||
| PlayMemories Camera Apps | Yes | |
| Interface | ||
| Wireless LAN (built-in) | Wi-Fi Compatible, IEEE802.11b/g/n (2.4GHz band)*1 Playback of still images and movies on smartphones, PCs and TVs |
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| NFC™ | Yes (NFC Forum Type 3 Tag compatible, One-touch remote, One-touch sharing) |
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| Multi Interface Shoe | Yes | |
| HD output | HDMI micro connector (Type-D), BRAVIA Sync (link menu), PhotoTV HD, 4K still image playback |
|
| Shutter | ||
| Type | Electronically controlled, vertical-traverse, focal-plane type | |
| Shutter speed | Still images: 1/8000 to 30 sec., Bulb Movies: 1/8000 to 1/4 (1/3 step), Up to 1/60 in AUTO mode (up to 1/30 in Auto Slow Shutter mode) |
|
| Electronic front curtain shutter | Yes, On/Off | |
| Drive | ||
| Drive modes | Single shooting, Continuous shooing, Speed Priority Continuous shooting, Self-timer (10/2 sec. delay selectable), Self-timer (Cont.) (10 sec. delay, 3/5 exposures selectable), Bracketing (Cont., Single, White Balance, DRO) | |
| Speed (approx.., max) * May vary depending on shooting conditions and media) |
Continuous shooting: Max. 2.5fps, Speed Priority Continuous Shooting: Max. 5.0fps |
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| Power | ||
| Battery | Rechargeable battery pack NP-FW50 | |
| Still images | Approx. 320 shots (viewfinder) / approx. 380 shots (LCD screen) (CIPA standard) |
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| Movies | Actual*2: Approx. 55 min with viewfinder, approx. 60 min with LCD screen (CIPA standard) Continuous*3: Approx. 90 min with viewfinder, approx. 90 min with LCD screen (CIPA standard) |
|
| External power | AC Adaptor AC-PW20 (optional) | |
| Weight | ||
| With battery and Memory Stick PRO Duo | Approx. 489g (approx. 1 lb 1.2 oz) | |
| Body only | Approx. 446g (approx. 15.7 oz) | |
| Dimensions | ||
| W x H x D (excluding protrusions) | Approx. 126.9 x 94.4 x 48.2mm (approx. 5 x 3 3/4 x 1 15/16 in.) |
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| Operating temperature | ||
| Range | 32 degrees – 104 degrees F / 0-40 degrees C | |
Sony A7s 4K Full Frame Mirrorless Camera Product Images
