The Sony Alpha A7S Mark II is a replacement to the A7S, with enhanced video functionality, a faster AF system and extraordinary low-light capabilities that will appeal both to photographers and video specialists. In addition to internal 4K video recording with full pixel readout, the A7S MK II also offers S-Gamut3.Cine/S-Log3, new Gamma Assist Display, enhanced Zebra Function, Full HD at 120fps and 4x/5x slow motion recording. At the heart of the a7S MK II is a full-frame 12.2-megapixel image sensor and BIONZ X image processing engine that work in tandem to deliver 5-axis Image Stabilisation and an outstanding sensitivity range of ISO 50-409,600 to facilitate even greater shooting control in challenging lighting conditions
**Sony Alpha A7S II: Key Features*
- Full frame compact system camera
- 12.2MP CMOS sensor
- BIONZ X image processor
- Slow-mo & in-camera 4K video recording
- ISO 100-102,400 (exp. to 50-409,600)
- Full HD 1080p video
- 3.0” tiltable LCD, 1.22million dots
- OLED viewfinder, 2.35million dots
- Wi-Fi and NFC connectivity
- 169 AF points
- Great low light performer for stills and videos
- Takes Sony E-mount lenses
- Features in more detail:
Video Specs
The a7S II can record 4K movies internally in the XAVC S format meaning that content is wonderfully detailed. Because information from all pixels is utilised without line skipping or pixel binning, the camera can maximise the expanded power of the full-frame image sensor and produce 4K movies with higher image clarity and negligible moiré. Full pixel readout without pixel binning is also employed when shooting Full HD movies which means that it collects information from approximately five times as many pixels that are required to generate Full HD and condenses the information to produce extremely high quality movies.
In a first for the a7 series, the a7S II can record 120fps at 100Mbps with full pixel readout without pixel binning in full frame format which can be edited into wonderful 4x/5x slow motion footage in Full HD. The a7S II also has the ability to shoot 4x/5x slow motion footage internally which can be immediately reviewed on the camera screen.
Video functionality has been further enhanced with new profiles; S-Gamut3.Cine/S-Log3 and S-Gamut3/S-Log3. These new profiles deliver wide dynamic range and colour correction is easier to perform. The a7S ll even offers impressive 14-stop latitude in the S-Log3 gamma setting. The camera also supports S-Gamut/S-Log2 which is very popular among cinematographers and videographers. Gamma Display Assist is a new function that allows users to monitor images or check focus when recording S-Log movies and the Zebra function has been improved for even greater control.
5-Axis Image Stabilisation
5-axis image stabilisation
The new a7S II is equipped with the innovative system that is proving extremely popular in the a7 II and a7R II cameras. The system corrects camera shake along five axes during shooting, including angular shake (pitch and yaw) which has the greatest impact on image quality and tends to occur with a telephoto lens, shift shake (X and Y axes) which becomes noticeable as magnification increases, and rotational shake (roll) that often affects night shooting or video recording.
Autofocus
The autofocus system on the a7S II has been upgraded and now offers 169 AF points for fast, precise focusing with greater accuracy. The power of the image sensor means that the absence of noise in images generated, enables the Fast Intelligent AF to detect contrast more easily and react speedily even in low-light situations (as low as EV-4), when it’s even tough to check with the naked eye. When shooting video, the AF performance is twice as fast as the predecessor model.
Electronic Viewfinder
The XGA OLED Tru-Finder in the a7S II has been upgraded and offers the world’s highest viewfinder magnification of 0.78x (roughly 38.5 degrees in diagonal field of view) and shows clear images across the entire display area. The use of ZEISS T* Coating ensures sharp reduction of reflections on the viewfinder and unlike an optical viewfinder, the OLED Tru-Finder can be used to instantly show how exposure compensation, white balance and other selected settings are affecting the displayed image.
