Sony A7s II is the camera mirrorless generation by Sony. As the name suggests, this camera is part of the full-frame mirrorless series of Sony A7 and is the successor of the Sony A7s II camera. This camera is focusing on video features and sensitivity in dark spaces.
Sony A7s II Specification
The Sony A7s II sensor still uses full frame CMOS Exmor (36 x 24mm) with 12-megapixel resolution (4240 x 2832 pixels). Indeed 12MP at this time is very small. Mobile devices such as just a lot already through it.
With a small resolution, the size of each pixel is larger than a large megapixel camera with the same sized sensor. The noise ratio becomes smaller, so the ISO can be increased up to 409,600, like the first generation Sony A7s II. For comparison, the Sony A7R II that uses 42MP resolution can only be up to ISO 102.400.
An important feature that is enhanced is 4K recording. First generation A7s must use external recording aids to record 4K. This time on A7s II users can record 4K (3840 x 2160 pixels) resolution video 30 frames per second. This video will have 100Mbps bitrate directly to microSD.
To record 4K, A7s II uses full-sensor readout. so the 4K video results will be sharper and do not have more (a disturbing line crossing when shooting striped patterns). This technology also used A7s II to record 1080p video at a resolution of 120 frames per second.
Sony A7s II Feature
For filmmakers, both amateur and professional, the A7s II features S-Log3 mode. Which allows dynamic range up to 14 stops, allowing users to record in difficult lighting conditions (backlight and so on).
In-body Image Stabilization Technology (IBIS) applied by Sony in A7 II and A7r II is also present in A7s II. This IBIS technology uses 5 axes, ensuring stability when shooting in dark conditions.
For autofocus, the A7s II uses a new system with 169 focal points, unfortunately still using contrast detection, unlike the Sony A7, A7 II and A7r II which already use faster detection of phase and phase detection.
Sony A7s II costs about USD 3000. With. A7s II completes the second generation of the A7 series, following the A7 II and A7r II. Last June, Sony has launched A7r II which has a resolution of 42MP.