The Nikon D90 is a 12.3- megapixel digital single-lens reflex
camera model announced by Nikon on August 27, 2008. It is
a prosumer model that replaces the Nikon D80 , fitting
between the company’s entry-level and professional DSLR
models. Nikon gives the D90’s Estimated Selling Price in
the United States as US$ 899.95 for the body alone and
as $1299.99 with the Nikkor AF-S DX 18-105mm f/3.5-5.6G
ED VR , which by itself sells for $399.95. Street prices are
generally lower.
The D90 was the first DSLR with video recording
capabilities. In May 2009, the D90 won the TIPA European
Photo & Imaging Award, in the Best D-SLR Advanced
category. ( Features)
Some of the improvements the D90 offers over the D80
include 12.3 megapixel resolution, extended light sensitivity
capabilities, live view and automatic correction of lateral
chromatic aberration. The D90 is the first DSLR to offer
video recording, with the ability to record HD 720p videos,
with mono sound, at 24 frames per second.
Unlike less expensive models such as the D40 , D60 , D3000
and D5000 , the D90 has a built in autofocus motor, which
means that all Nikon F-mount autofocus- lenses ( except two
for the rare Nikon F3AF ) can be used in autofocus mode.
The Nikon D90 is the first Nikon camera to include a third
firmware module, labeled L, which provides an updateable
lens distance integration database that improves
autoexposure functions. Some of its accessories,
such as the MB-D80 battery grip and ML-L3 wireless
remote, are also compatible with its predecessor the D80.
It supports Global Positioning System integration for
automatic location tagging of photographs, using a GPS
receiver sold separately.
Feature list
Nikon’s 12.3 megapixel Nikon DX format CMOS sensor .
Nikon EXPEED image/video processor.
D-Movie mode ( 720p , with mono 22 kHz sound) .
Active D-Lighting ( 4 levels and Auto) .
Automatic correction of lateral chromatic aberration for
JPEGs . Correction-data is additionally stored in RAW-files
and used by Nikon Capture NX , View NX and some other
RAW tools.
Lens distortion correction as well as image rotation
( Straighten) via playback ( Retouch) menu
3-inch TFT LCD with 920, 000-dot resolution ( 640x480
VGA ) and 170-degree ultra-wide viewing angle.
Live View shooting mode ( activated with a dedicated
button) .
Continuous Drive up to 4.5 frames per second.
3D Color Matrix Metering II with Scene Recognition
System.
3D Tracking Multi-CAM 1000 autofocus sensor module
with 11 AF points.
Face detection autofocus in live view mode.
ISO sensitivity 200 to 3200 ( 100–6400 with boost) .
Nikon F-mount lenses
i-TTL flash exposure system with built-in wireless control
( Commander-mode) . Compatibility: SB-400, SB-600,
SB-700, SB-800, SB-900, SB-910, R1C1 and third party
manufacturers [10][11]
Built-in Sensor cleaning system ( vibrating low-pass filter) .
HDMI HD video output
Support for GPS unit direct connect.
File formats: JPEG , NEF ( Nikon’s RAW, 12-bit
compressed) , AVI ( Motion JPEG ) .
EN-EL3e Lithium-ion Battery, Battery Life ( shots per
charge) approx. 850 shots ( CIPA) .
Weight: Approx. 620 g ( 1.37 lb) without battery, 703 g
( 1.550 lb) with battery.