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Thursday, April 9, 2009

Nikon D90 Digital SLR Camera " The First Digital SLR Camera to Feature Video Recording

By Fred Gagnon

Nikon D90 digital SLR camera is a cross between entry-level and professional-level camera or sometimes referred to as a prosumer camera. It was released as a replacement for the Nikon D80 digital SLR camera. It is the first digital single lens reflex camera to feature video recording. Some of the features that make it better than the Nikon D80 are its 12.3 megapixel resolution, its Live View feature and its capability to record videos.

Nikon D90 Digital SLR Camera has 12.3-megapixel DX format CMOS imaging sensor. Working together with Nikons EXPEED image processing technologies, you will be assured of incredible image fidelity. The camera also comes with Nikkor AF-S DX 18-105mm f/3.5-5.6G ED VR lens and EN-EL3e lithium-ion battery. Like other Nikon cameras with F-mount lenses, this camera can be used with other Nikkor lenses.

It has Live View shooting mode that is activated with a dedicated button, which activates access to 3 contrast detection focus modes including Face Priority AF. Face priority Autofocus is the Face Detection feature in live view mode. This feature functions to determine the features of a human face in a digital image while ignoring anything else in the background.

Nikon D90 is the first digital SLR camera to feature video recording. It can record HD or high definition 720p videos, or 720 pixels of vertical resolution, at 24 frames per second. It can record videos for up to 5 minutes. With smaller resolution, it can record up to 20 minutes. Videos are recorded with mono sound at 22 kHz.

Like most video cameras that uses CMOS chip to capture light, this camera uses a method called rolling shutter. Rolling shutter refers to the method in which images are captured sequentially in thin rows from top to bottom, one after the other, over the course of a single frame. Rolling shutter is also used by mechanical video cameras.

It has a selectable Active D-Lighting with 4 levels and Auto mode. With this function, you can optimize details within shadows and highlights. It also enables you to tame high-contrast situations in real time. It has comprehensive exposure control with five advance scene modes plus Program Auto, Shutter Priority, Aperture Priority and Manual.

Nikon D90 digital SLR cameras start up time is about 0.15 milliseconds, while its shooting time lag is only 65 milliseconds. It offers continuous shooting as fast as 4.5 frames per second. It can produce JPEG images, NEF images and AVI motion JPEG. It has a durable shutter that has been tested to 100,000 cycles.

It has 3-inch TFT LCD with 920,000-dot resolution (VGA). It offers high resolution and 170-degree wide angle viewing. It has built-in image sensor cleaning system that uses 4 frequencies to get rid of the dust particles that degrades image quality.

It has Multi CAM 1000 autofocus sensor module with 11 AF points, which is consistently fast and accurate. Reinforced by 3D Color Matrix Metering II with Scene Recognition System, the camera can deliver razor sharp images. For unmatched exposure accuracy, you can reference your images to an on-board database which contains over 30,000 photographic scenes.

Nikon D90 digital SLR camera offers low noise sensitivity of ISO 200-3200. It can deliver exceptional performance even at high ISO setting. It is also compatible with the following optional components: GP-1 GPS unit for geo-tagging, ML-L3 wireless (infrared) remote control, MC-DC2 remote cord and MB-D80 Multi Power Battery grip.

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