Sony A7s has
just announced, a 12MP 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. This also promises higher quality for
the 1080p video (at up to 60p) it can record internally. Unlike the A7
and A7R, the latest model is not constrained by the AVCHD standard, also
offering the XAVCS system, with bitrates of up to 50Mbps.Release Date: Summer, 2014.
Specs:
| General | ||
| Lens mount | α 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) | |
| 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 | ||
| MP4: MPEG-4 AAC-LC, 2ch | ||
| Image size (pixels) | 1080 60i compatible device | XAVC S: 1920 x 1080 (60p/50Mbps, 30p/50Mbps, 24p/50Mbps), 1280 x 720 (120p/50Mbps) |
| AVCHD: 1920 x 1080 (60p/28Mbps/PS, 60i/24Mbps/FX, 60i/17Mbps/FH, 24p/24Mbps/FX, 24p/17Mbps/FH) | ||
| MP4: 1440 x 1080 (30fps/12Mbps), 640 x 480 (30fps/3Mbps) | ||
| 1080 50i compatible device | XAVC S: 1920 x 1080 (50p/50Mbps, 25p/50Mbps, 24p/50Mbps), 1280 x 720 (100p/50Mbps) | |
| AVCHD: 1920 x 1080 (50p/28Mbps/PS, 50i/24Mbps/FX, 50i/17Mbps/FH, 25p/24Mbps/FX, 25p/17Mbps/FH) | ||
| MP4: 1440 x 1080 (25fps/12Mbps), 640 x 480 (25fps/3Mbps) | ||
| Movie functions | Audio Level Display, Audio Rec Level, Auto Slow Shutter, HDMI info. Display (On/Off selectable), Time Code/User Bit, Clean HDMI output for 4K, Picture Profile, Creative Style, Picture Effect, Rec Control, Dual Video Rec, Marker Setting | |
| 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 | |
| Clean HDMI output | ||
| Clean HDMI output | 1080 60i compatible device | 3840 × 2160(30p/24p) / 1920 × 1080(60p/24p) / 1920 × 1080(60i),YCbCr 4:2:2 8bit/ RGB 8bit |
| 1080 50i compatible device | 3840 × 2160(25p) / 1920 × 1080(50p) / 1920 × 1080(50i),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) | |
| 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) | |
| 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) | |
| 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 | ||
| ` 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 |
|
| NFC™ | Yes (NFC Forum Type 3 Tag compatible, One-touch remote, One-touch sharing) | |
| 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 | |
| Power | ||
| Battery | Rechargeable battery pack NP-FW50 | |
| Still images | Approx. 320 shots (viewfinder) / approx. 380 shots (LCD screen) (CIPA standard) | |
| 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 andMemory 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.) | |
| Operating temperature | ||
| Range | 32°-104°F / 0-40°C | |
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