The Nikon D90 is a digital single lens reflex ( DSLR) camera with 12.3 - megapixel image sensor DX format. It was introduced on 27 August 2008 at photokina as successor to the D80 and was launched in September 2008. The D90 was the first DSLR with HD video function.
The Nikon D90 has over its predecessor D80 on some developments. In addition to the higher resolution of 12.3 after 10.2 megapixels, it has a slightly larger 3 "LCD display with 920,000 instead of 230,000 pixels, Live View and a function for sensor cleaning. As the first digital SLR in the middle class, it offers digital video recording in HD format. To save the movie and image data comes in the D90 an SD memory card as storage medium for use.
With the Nikon D90 videos can be recorded in AVI format at a resolution of 1280 × 720 pixels ( 24 frames per second, a maximum of 5 minutes). At resolutions of 320 × 216 or 640 × 424, the maximum length per movie for 20 minutes.
The images are recorded on the sensor line by line, so the rolling shutter effect occurs.
With firmware 1.0 aperture for video recording of up to f / 8 it can be concluded, however, the aperture must be set before activating the Live View mode.
Nikon allows for numerous cameras to connect a GPS receiver directly to the camera body. First, this possibility was only in the field of professional cameras - offered - such as for the D3 and D3X. The Nikon D90 is the first digital camera in the consumer sector of the SLR with this option. At the same time, the GPS receiver Nikon GP-1 was introduced as an accessory that allows the recording of the exact position of the photographer with any recording.
The Nikon D90 has been discussed in detail before its launch in the press. It was traded by the trade press as a modern middle class ( colorfoto.de ) and as a competitor or alternative to the Canon EOS 50D. The at the time of introduction in this class new way to video record in HD format has been widely highlighted as a special feature.