The Nikon D4S is a full frame professional DSLR camera announced by Nikon Corporation on February 25, 2014 to succeed the D4 as its flagship DSLR. The D4S offers a number of improvements over its predecessor including a new sensor, new image processor, new battery, improved ergonomics and expanded ISO range. Additionally, improved auto focus (AF) algorithms and a new AF Tracking mode were introduced together with a new option of RAW image capture in full resolution (16 MP) or a "Small" file (4 MP).
In May 2014, the D4S received a Technical Image Press Association (TIPA) 2014 Award in the category of "Best Digital SLR Professional". In August 2014, the D4S received a European Imaging and Sound Association (EISA) award in the category "European Professional DSLR Camera 2014-2015".
While the D4S retains many features of the Nikon D4, it offers the following new features and improvements:
- Redesigned 16.2-megapixel image sensor with less noise
- New Expeed 4 image processor
- New Group-area Autofocus mode, allowing five focus points to be grouped for subject tracking
- Exposure smoothing during timelapse recording
- Expanded ISO range of ISO 100-25,600 (boosted range of ISO 50-409,600)
- Gigabit Ethernet port for data transfer and tethered shooting
- Full HD (1920 Ã 1080) 60p video capture with uncompressed video output via HDMI
- Improved autofocus and subject tracking algorithms
- Improved mirror mechanism, increasing continuous shooting speed to 11fps with AF
- Improved MH-18a battery with higher capacity for increased battery life of approximately 3000 shots
- Official Nikon USA press release
- Nikon D4s vs. D4 specifications comparison
- Nikon D4s userâs manual Nikon