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The invention of digital cameras A digital camera (or digital camera) is a camera that takes video or still photographs, or both, the electronic image sensor by recording the images digitally.
Front and back of the Canon PowerShot A95 digital camera can record many small still pictures and sound and moving video. 21st Century wholesale digital cameras.
Digital cameras can do things that film cameras can not: immediately displayed on the screen, their images recorded and stored in a small storage device of thousands of images, recorded sound film, and delete images of free storage space. Some can perform other crops based on images and image editing. Optical system, such as film cameras, usually with a variable diaphragm of a lens focused an image light receiving device. Recognition of the right diaphragm and shutter the amount of imaging light, like film, but the image receiving device, rather than chemical electronics.
From PDA and digital camera into mobile phones (called camera phones) to vehicles includes many devices. Hubble Space Telescope and other astronomical equipment are essentially professional wide angle digital camera. Visit TradeTang.com.
Digital cameras in a variety of sizes, a wide range of price and performance. Most camera phones, as through the phone menu to run mobile applications. Many professional photographers and amateurs more flexibility with their larger, more expensive digital single-lens (digital SLR) SLR cameras. Between these two extremes lies a small cheap digital cameras and bridges, "bridge" the gap between the amateur and professional cameras digital cameras. Professional cameras, such as multi-spectral imaging device and continue to mirror the invention of digital photography for scientific, military, medical and other special uses.
A small compact camera is designed and easy to carry, especially for casual and "snapshot" for use, also known as point and shoot camera. Minimum, generally no more than 20 mm thick, has been described as subcompacts or "ultra-contract."
In most cases, from the reinforcement or waterproof models, the integrated thin telescopic camera lens allows the General Assembly, a medium-long focal length, so take advantage of more than camera phones on the image sensor, and a mechanical lens cover, to cover the lens back . Retraction and lens cover keys, coins and other hard objects, so that the thin, portable package. Subcompacts usually have one ear and a short strap and AIDS extracted from a pocket, and additional contracts may have a thick strap two ears.