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How To Purchase Spy Cameras

From now on the market in all kinds of consumer-grade spy cameras view, even though they have different appearances and their own advantages, but also get away pixels, zoom, aperture, shutter, macro functions of the measure.

As we all know, Wholesale security surveillance zoom digital zoom mode and optical zoom is divided into two types. Digital zoom is actually the picture of electronic amplification technology, CCD or CMOS image sensor to the original on the part of the pixel using the software "interpolation" means of disposing of so enlarged, so we usually see 1-3 times digital zoom also supported. Although the film has been enlarged image, but the definition down to a certain extent, it has little practical digital zoom. The optical zoom is to rely on changes in the structure of optical lens to achieve zoom is moving through the lens to zoom in and need to take in the scenery, the mainstream of today's home-based digital cameras usually have 2-5 times the optical zoom, with technological advances and innovation, or more than 10 times optical zoom digital camera will be into the ability of ordinary people, families.More information In tradetang.com.

Similar to traditional wholesale spy cameras, digital camera shutter speed and aperture range is important when shooting options. Aperture and shutter are complementary, they will affect whether your camera in various lighting situations to good effect. The shutter speed will directly affect the image when you record the dynamic effect, while the aperture range will affect your depth of field shot images.

The main application is the shutter film movement of objects and situations, and would like to take the appropriate time of signal jammers experience is required, where the author example. When walking or shooting fast-moving, the shutter speed set at 1 / 250 seconds right, this can be a relatively clear picture is not dithering; to shoot faster free fall or speeding objects, you need to increase the shutter speed to 1 / 400 seconds; and very quick to take flight, they have 1 / 800 seconds or more of the. Conversely, if you want to shoot such a relatively vague and otherwise battle each other pictures of conception, the relatively lower shutter will be better results, such as use of 1 second, 1 / 2 seconds and so on.

Affect the micro-shoot wholesale spy camera watches is the most important factor has macro capability. And relatively professional cameras have 10CM function within the macro shooting, but we generally are talking about the higher grades can have a home digital camera's macro function 8-20CM. Also to note is that in the high optical zoom + macro function, most of the cameras need the help of a tripod, this photo will be taken out without jitter and ambiguous situations.