Sony α7 II
2014 full-frame mirrorless camera
From Wikipedia, the free encyclopedia
The Sony α7 II (model ILCE-7M2) is a full-frame mirrorless interchangeable-lens camera announced by Sony on 20 November 2014.
 | |
| Overview | |
|---|---|
| Maker | Sony Group |
| Type | Full-frame mirrorless interchangeable-lens camera |
| Intro price | $1699.00 |
| Lens | |
| Lens | Sony E-mount[1] |
| Sensor/medium | |
| Sensor | 35.8 × 23.9 mm Exmor full-frame HD CMOS Sensor |
| Maximum resolution | 6000 × 4000 (3:2) (24 megapixels) |
| Film speed | Auto, 100-51200 |
| Storage media | Memory Stick Pro Duo, Pro-HG Duo, SD, SDHC, SDXC |
| Focusing | |
| Focus modes | Contrast Detect (sensor), Phase Detect, Multi-area, Center, Selective single-point, Single, Continuous, Face Detection, Live View, SteadyShot |
| Exposure/metering | |
| Exposure metering | Multi-segment, Center-weighted, Spot |
| Shutter | |
| Shutter | Electronically-controlled, vertical-traverse, focal-plane shutter |
| Shutter speed range | 1/8000 - 30 sec, BULB |
| Continuous shooting | 5 frame/s |
| Viewfinder | |
| Viewfinder | Built-in 2.4 million dots OLED Electronic viewfinder |
| General | |
| LCD screen | 3.0 in (76 mm) Tilting XtraFine LCD, 1,230,000 pixels |
| Battery | NP-FW50, InfoLITHIUM, 7.2 V, 1080 mAh, 7.7 Wh, Lithium-Ion rechargeable battery |
| Dimensions | 127 × 96 × 60 mm |
| Weight | Approx. 599 g (21.1 oz) (camera body, card and battery) |
| Made in | Thailand |
The Sony Alpha 7 II is the sequel to the Alpha 7 and adds a 5-axis sensor-shift image stabilization (generically referred to as IBIS) to its 24MP full-frame CMOS sensor. between 2 and 3.3 stops is the estimated IBIS performance. The a7 II futhers Sony's Hybrid AF system, its 30% faster and 1.5X better tracking compared to its predecessor. From a design standpoint, additional improvements in this model include more rugged build quality, a new front dial, and a relocated shutter release button.[2]
While the cameras can use any E-mount lens, the image circle of APSC E-mount glass will not cover full frame. Sony has a setting to auto crop in camera or you can crop afterward to taste. Sony now has a robust lineup of first party lenses and 3rd party lenses form the likes of Chinese lens manufacturers.
The A7 II used the most cutting edge Sony Bionz X processor. Bionz x is based on a quad-core ARM Cortex-A5 architecture, and is used to run Android apps on top of the Linux kernel. Detail reproduction and diffraction-reducing algorythms, area-specific noise reduction and 16-bit image processing + 14-bit raw output were all innovations introduced with this processor.[3][4] It can process up to 20 frames per second and features Lock-on AF and object tracking.Other features include a 3-inch, tilting LCD, XGA OLED electronic viewfinder, Multi-interface (hot) shoe, Wi-Fi with NFC, and video recording with the XAVC S codec which offers a 50MBps bit rate at 1080/60p (as well as 1080/30p and 1080/24p). and a 'LOG' picture profile.
Model differences
| Model | α7 | α7R | α7S | α7 II | α7R II | α7S II |
|---|---|---|---|---|---|---|
| Product standing | Balanced | High Resolution | High Sensitivity | Balanced Mark II | High Resolution Mark II | High Sensitivity Mark II |
| Sensor resolution | 24.3 Mpx Exmor CMOS 6,000×4,000 pixels (35.80 mm×23.90 mm) | 36.4 Mpx Exmor CMOS 7,360×4,912 pixels (35.90 mm×24.00 mm) | 12.2 Mpx Exmor CMOS 4,240×2,832 pixels (35.80 mm×23.90 mm) | 24.3 Mpx Exmor CMOS 6,000×4,000 pixels (35.80 mm×23.90 mm) | 42.4 Mpx Exmor R BSI-CMOS 7,952×5,304 pixels (35.90 mm×24.00 mm) | 12.2 Mpx Exmor CMOS 4,240×2,832 pixels (35.80 mm×23.90 mm) |
| ISO range | Expanded ISO 50 - 25600 Multi frame NR 100 - 51200 | Expanded ISO 50 - 25600 Multi frame NR 100 - 51200 | Native ISO 100 - 102400 Expanded ISO 50 - 409600 | Expanded ISO 50 - 25600 Multi frame NR 100 - 51200 | Native ISO 100 - 25600 Expanded ISO 50 - 102400 | Native ISO 100 - 102400 Expanded ISO 50 - 409600 |
| Autofocus | 25 point contrast-detection w/ 117 points phase-detection | 25 point contrast-detection | 25 point contrast-detection | 25 point contrast-detection w/ 117 points phase-detection | 25 point contrast-detection w/ 399 points phase-detection | 169 point contrast-detection |
| Maximum flash sync speed | 1/250 | 1/160 | 1/250 | 1/250 | 1/250 | 1/250 |
| Max Continuous Shooting | 5 frame/s | 4 frame/s | 5 frame/s | 5 frame/s | 5 frame/s | 5 frame/s |
| In-body image stabilization | No | 5-axis | ||||
| Flash Exposure Lock | No | No | Yes | Yes | Yes | |
| Electronic shutter mode | First-curtain only | No | First-curtain and Silent shutter | First-curtain only | First-curtain and Silent shutter | First-curtain and Silent shutter |
| Gapless on-chip lens | No | Yes | Yes | No | Yes | Yes |
| Live-view Tethered Capture | No | No | Yes | Yes | Yes | Yes[5] |
| Custom minimum shutter speed at Auto ISO |
No | No | No | No | Yes | Yes |
| Flexible Spot with Lock on AF | No | No | No | No | Yes | Yes |
| Continuous Eye-AF | No | No | No | No | Yes | Yes |
| AF Sensitivity | 0 ~ 20 EV | 0 ~ 20 EV | -4 ~ 20 EV | -1 ~ 20 EV | -2 ~ 20 EV | -4 ~ 20 EV |
| Metering Sensitivity | 0 ~ 20 EV | 0 ~ 20 EV | -3 ~ 20 EV | -1 ~ 20 EV | -3 ~ 20 EV | -3 ~ 20 EV |
| User Custom Buttons | 3 | 3 | 3 | 4 | 4 | 4[6] |
| Monitor Resolution | 921.6 K | 1,228.8 K[7] | ||||
| Viewfinder Magnification | 0.71× | 0.78× | ||||
| Video record format | MPEG-4, AVCHD (28 Mbit/s) 1080p | MPEG-4, AVCHD (28 Mbit/s), XAVC S (50 Mbit/s) 1080p | MPEG-4, AVCHD (28 Mbit/s), XAVC S (100 Mbit/s) 4K video | |||
| Video sampling | Line skipping | Line skipping | Full-pixel readout | Line skipping | Pixel-binning at Full Format Full-pixel readout at Super 35 | Full-pixel readout[8] |
| Slow motion video record | No | No | Yes (720p, 120fps) | No | Yes (720p, 120fps) | Yes (1080p, 120fps) |
| HDMI Output | 4K still and 1080p video | 4K still and 1080p video | 4K still and 4K video | 4K still and 1080p video | 8K still and 4K video | 4K still and 4K video |
| Video Light mode | No | No | Yes | No | Yes | |
| Professional Video edit | No | No | Picture Profile w/CineGamma, Timecode, Userbit[9] | |||
| Body material | Combi. of magnesium alloy and polycarbonate | Full magnesium alloy chassis and polycarb bayonet mount. | Full magnesium alloy chassis and stainless steel bayonet mount. | |||
| Other features | Hybrid autofocus system | No optical Low-pass filter | Full-pixel readout video at Full Format | Hybrid autofocus system | Hybrid autofocus system, No optical Low-pass filter | Full-pixel readout video at Full Format |
| Phase-detection AF on non-native lenses |
Only A-mount lenses with LA-EA2 and LA-EA4 | Yes (Firmware update) | Yes | Only with LA-EA2/4[10] | ||
| Operate while USB charging | No | No | No | No | Yes | Yes |
| Battery-life (CIPA standards) |
340 shots | 340 shots | 380 shots | 350 shots | 340 shots | 370 shots |
| Weight | 416 g | 407 g | 446 g | 556 g | 582 g | 584 g |
| Dimension | 127×94×48 mm | 127×96×60 mm | 126.9x95.7x60.3 mm | |||
| Announced | 16 October 2013 | 6 April 2014 | 20 November 2014 | 10 June 2015 | 11 September 2015 | |
