The Droid X and the Evo 4G -- smartphones released in 2010 by Motorola and HTC Corp. -- each have a video camera that performs two major functions: taking digital pictures and recording video footage. Of the two mobile devices, the Motorola Droid X has the more advanced video camera.
Megapixels
Placed at the back of the Motorola Droid X and the HTC Evo 4G, the video camera is sometimes referred to as the rear camera to differentiate it from the front camera, if available. Each camera has an imaging sensor that provides up to 8 megapixels (MP), or 8,000,000 (8 million) pixels. The megapixels are responsible for determining the camera's resolution, or image quality.
Resolution
Although the video cameras of the Motorola Droid X and the HTC Evo 4G have the same amount of megapixels, the former has a better resolution than the latter. The Droid X has a resolution of 3,266 by 2,450 pixels, or 8,001,700 pixels. The Evo 4G offers 3,264 by 2,448 pixels, which comes up to 7,990,272 pixels. Despite the disparity, the Droid X number is rounded down and the Evo 4G is rounded up to 8,000,000 pixels, thus the 8MP designation for both video cameras.
Video Recording
Each Motorola Droid X and HTC Evo 4G video camera has video recording capability. The resolution produced is 1,280 by 720 pixels, which is represented by the designation "720p." The "p" suffix stands for progressive scan, which means that each line that makes up the display on the smartphone's screen is rendered sequentially. The Droid X's video camera in particular produces consecutive images at a speed of 24 frames per second; this is called the frame rate.
Other Features
Each Motorola Droid X and HTC Evo 4G video camera has autofocus for automatic focus on a specific area, a dual light-emitting diode flash system and geotagging for adding geographical identification to pictures or video. Face detection and image stabilization are added features on the Droid X smartphone's camera.
Tags: Motorola Droid, Droid video, Motorola Droid video, video camera, video camera, Droid video camera