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The Nikon D2H is a professional-grade
digital single-lens reflex camera 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 ...
introduced by
Nikon Corporation (, ; ), also known just as Nikon, is a Japanese multinational corporation headquartered in Tokyo, Japan, specializing in optics and Photography, imaging products. The companies held by Nikon form the Nikon Group. Nikon's products include cam ...
on July 22, 2003. It uses Nikon's own
JFET The junction-gate field-effect transistor (JFET) is one of the simplest types of field-effect transistor. JFETs are three-terminal semiconductor devices that can be used as electronically controlled switches or resistors, or to build amplifiers. ...
- LBCAST sensor with a 4.1-megapixel resolution, and is optimised for sports and action shooting that require a high frame rate. In 2005, the D2H was replaced by the D2Hs, which added new features derived from the 12-megapixel D2X digital SLR. The D2Hs was discontinued after the introduction of the D300 and D3 models. Like most early Nikon Digital SLR cameras, it uses a " DX Format" sensor, which applies a
crop factor In digital photography, the crop factor, format factor, or focal length multiplier of an image sensor format is the ratio of the dimensions of a camera's imaging area compared to a reference format; most often, this term is applied to digital ca ...
compared to 35 mm film of approximately 1.5×.


D2Hs

The D2Hs was announced on February 16, 2005, adding several improvements to the D2H design, although with the same sensor and body. Nikon added an improved
light meter A light meter is a device used to measure the amount of light. In photography, a light meter (more correctly an exposure meter) is used to determine the proper exposure for a photograph. The meter will include either a digital or analog calculat ...
ing system, faster subject acquisition and tracking algorithms to the Multi-CAM-2000
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 ...
module, and expanded both the JPEG and RAW continuous shooting buffer. Nikon also reported improved noise reduction at high sensor sensitivities. The
ASIC An application-specific integrated circuit (ASIC ) is an integrated circuit (IC) chip customized for a particular use, rather than intended for general-purpose use, such as a chip designed to run in a digital voice recorder or a high-efficien ...
image processing was changed to 12-bit from the original D2H 8-bit. Auto
White Balance In photography and image processing, color balance is the global adjustment of the intensities of the colors (typically red, green, and blue primary colors). An important goal of this adjustment is to render specific colors – particularly neu ...
was altered with improved low color temperature lighting, mixed ambient, and
speedlight Speedlight is the brand name used by Nikon Corporation for their photographic flash units, used since the company's introduction of strobe flashes in the 1960s. Nikon's standalone Speedlights (those not built into the company's cameras) have the ...
lighting. SYCC color space was added, and
Exif Exchangeable image file format (officially Exif, according to JEIDA/JEITA/CIPA specifications) is a standard that specifies formats for images, sound, and ancillary tags used by digital cameras (including smartphones), scanners and other syste ...
compliance was adjusted from Exif 2.2 to Exif 2.21, DCF 2.0, and DPOF.
GPS The Global Positioning System (GPS), originally Navstar GPS, is a satellite-based radionavigation system owned by the United States government and operated by the United States Space Force. It is one of the global navigation satellite sy ...
support and improved wireless support (with WT-2 transmitter for 802.11b/g) were also added. A new LCD screen of the same size but with increased resolution and a higher refresh rate was added to the body. The screen's playback mode now supports 15x zoom instead of the 8x of the D2H, with RGB Histogram. The menus have been expanded to include an additional 5 languages for a total of 10. Like the D2X, it features a recent settings list, world time function, and modified vertical shooting buttons and CompactFlash card door opening. The D2Hs features a continuous burst rate of up to 8 frames per second, with a buffer capacity of 50 JPEG files or 40 NEF (Nikon Electric Format- Nikon's proprietary Camera RAW image format) files. The 4.1 megapixel sensor has an ISO sensitivity equivalency of ISO 200–1600, in 1/3, 1/2, and 1 stop increments, as well as Hi-1 and Hi-2 ISO boosts (3200 and 6400 equivalency). It offers full compatibility with AF-S, VR, DX, D and G type AF-Nikkor lenses, all functions except autofocus and some exposure modes with D-type Manual Focus Nikkors, with AI-P Nikkors all functions except 3D Color Matrix Metering II, 3D Multi-Sensor Balanced Fill-Flash and AF possible. The D2Hs, like the D2X, offers compatibility with Non-CPU AI Nikkor lenses, which are usable in aperture-priority or manual exposure mode with Matrix-Metering, Center-Weighted and Spot metering available.


Reaction to improvements over the D2H

Although the D2Hs has been considered by some to be obsolete from its very introduction due to its relatively low 4.1 megapixel resolution, the D2Hs has a reputation for extremely high image quality and excellent detail rendition. The D2Hs offers a noticeable improvement over the D2H in overall image quality and many users have reported that color rendition is improved in JPEG files (raw is the same), while the camera manages to offer a great improvement in noise at high sensitivities versus the D2H


Infrared contamination

The D2H series has a relatively weak
infrared Infrared (IR), sometimes called infrared light, is electromagnetic radiation (EMR) with wavelengths longer than those of visible light. It is therefore invisible to the human eye. IR is generally understood to encompass wavelengths from around ...
(IR) filter, allowing infrared photography with the use of an IR bandpass filter, but contaminating regular images by causing certain dark-colored fabrics to take on a slight magenta color cast. Skin tones may also appear slightly ruddy. Use of a No. 486 digital UV/IR blocking filter can help resolve the problem with lenses that are at least 50 mm or longer. Lenses shorter than 50 mm are not recommended for use with a No. 486 filter due to a tendency for the corners of the image to take on a cyan color cast.


References


External links


Nikon D2H Product Page – Nikon Global Website





Nikon D2h Review, dpreview.com
{{Nikon DSLR cameras
D2H D, or d, is the fourth letter in the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is ''dee'' (pronounced ), plural ''dees''. History Th ...
D2H D, or d, is the fourth letter in the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is ''dee'' (pronounced ), plural ''dees''. History Th ...