Traditional Culture Encyclopedia - Photography and portraiture - What are the components of a digital camera?
What are the components of a digital camera?
A component of a digital camera comprises the following parts: a lens module comprises a lens, a dichroic mirror, a motor for controlling the zoom of the lens and a motor driving chip; CCD/CMOS image sensor converts light into digital signal. The microcontroller (MCU) controls the input/output interface, outputs the image to the LCD screen, and generates the operation interface, that is, the menu of the digital camera. You can also control the camera's auto exposure, white balance, auto focus and aperture. Image processing unit (DSP) encodes and compresses images in JPEG or other formats, converts and compresses sounds in digital and analog formats, and generates NTSC/PAL signals that can be output to TV.
Dc components?
The components of dc are: lens, photoelectric conversion device (coms/ccd), analog-to-digital converter (a/d), microprocessor (mpu), built-in memory, lcd, mobile storage, interface (computer/TV interface), lithium battery, etc.
What is a pixel?
"Pixel" consists of the letters picture and element, and is the unit used to calculate digital images. Like photographs, digital images have continuous shadows. If you enlarge the image several times, you will find that these continuous shadows are actually composed of many small squares with similar colors, and these small squares are the smallest units of the image.
What is a SLR digital camera?
SLR digital camera refers to single-lens reflective dc, that is, digital, single-lens, single-lens and reflective dslr. Representative models in the market are common in Nikon digital cameras, Canon digital cameras, Pentax, Fuji and so on.
What is a shutter?
It is a device that prevents light from reaching the front of the camera. Generally speaking, the larger the shutter time range, the better. Low seconds is suitable for shooting moving objects, so a camera emphasizes that the shutter can reach116000 seconds at the earliest, which can easily capture fast moving targets. However, when shooting traffic at night, the shutter time will be lengthened, and the silky water flow effect in ordinary photos can only be photographed with a slow shutter.
What is a purple border?
The purple edge of a digital camera refers to the purple (or other colors) of dc, because the contrast of the subject at the junction of high light and low light is large. The causes of purple edge are related to the dispersion of camera lens, the small imaging area of ccd (high density of imaging unit) and the signal processing algorithm inside the camera.
What is the aperture range?
The English name of aperture is aperture. Aperture is a device used to control the amount of light entering the photosensitive surface of the fuselage through the lens. Usually in the camera. The aperture values f2.8, f8 and f 16 are the aperture "coefficients", which are relative apertures, not the physical aperture of the aperture, and are related to the physical aperture of the aperture and the distance from the lens to the photosensitive device (film or ccd or cmos).
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