DSLR
A digital single-lens reflex camera (digital SLR or DSLR) is a digital camera that combines the optics and the mechanisms of a single-lens reflex camera with a digital imaging sensor.
The reflex design scheme is the primary difference between a ...
camera announced by
Nikon Corporation
(, ; ), also known just as Nikon, is a Japanese multinational corporation headquartered in Tokyo, Japan, specializing in optics and imaging products. The companies held by Nikon form the Nikon Group.
Nikon's products include cameras, cam ...
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
image sensor
An image sensor or imager is a sensor that detects and conveys information used to make an image. It does so by converting the variable attenuation of light waves (as they pass through or reflect off objects) into signals, small bursts of c ...
, new
image processor
An image processor, also known as an image processing engine, image processing unit (IPU), or image signal processor (ISP), is a type of media processor or specialized digital signal processor (DSP) used for image processing, in digital cameras ...
, new battery, improved ergonomics and expanded ISO range. Additionally, improved
auto focus
''Auto Focus'' is a 2002 American biographical drama film directed by Paul Schrader and starring Greg Kinnear and Willem Dafoe. The screenplay by Michael Gerbosi is based on Robert Graysmith's book ''The Murder of Bob Crane'' (1993).
''Auto Focus ...
(AF) algorithms and a new AF Tracking mode were introduced together with a new option of RAW image capture in full resolution (16MP) or a "Small" file (4MP).
In May 2014, the D4S received a
Technical Image Press Association
The Technical Image Press Association (TIPA)Technical Image Press Association is an international, (TIPA) 2014 Award in the category of "Best Digital SLR Professional". In August 2014, the D4S received a
European Imaging and Sound Association Expert Imaging and Sound Association is a collaboration between different multimedia magazines, that offer tests of cameras, videocameras, audio equipment, mobile phone
A mobile phone, cellular phone, cell phone, cellphone, handphone, hand p ...
(EISA) award in the category "European Professional DSLR Camera 2014-2015".
The D4S was superseded by the Nikon D5, announced on January 5, 2016.
The D4S was discontinued in December 2016.
Features
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
An autofocus (or AF) optical system uses a sensor, a control system and a motor to focus on an automatically or manually selected point or area. An electronic rangefinder has a display instead of the motor; the adjustment of the optical system ...
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 × 1080) 60p video capture with uncompressed video output via
HDMI
High-Definition Multimedia Interface (HDMI) is a proprietary audio/video interface for transmitting uncompressed video data and compressed or uncompressed digital audio data from an HDMI-compliant source device, such as a display controlle ...
* Improved
autofocus
An autofocus (or AF) optical system uses a sensor, a control system and a motor to focus on an automatically or manually selected point or area. An electronic rangefinder has a display instead of the motor; the adjustment of the optical system ...
and subject tracking algorithms
* Improved mirror mechanism, increasing continuous shooting speed to 11fps with AF
* Improved EN-EL18a battery with higher capacity for increased battery life of approximately 3000 shots