About-network-video:
video-solution:
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| How To Choose A Digital Camera
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How to choose a digital camera? This is not an easy question to answer given the
wide range of digital cameras available in the market today. Each camera comes
with its own individual features like image resolution, storage capacity, lens
power etc. So, what should the buyer look for in the camera?
1. Image
Quality
Image quality and trueness of colors need to be studied
carefully. In fact, one should spend considerable time looking at images
generated by different cameras before taking a decision. These images should not
be the retouched images but fresh shoots.
2. Resolution
Resolution is another major requirement. The quality of a camera is
directly proportional to the resolution of the images. For example, a 3
megapixels (MP) camera outputs images that are anywhere from 1 to 2 MB in size
while a 7 MP camera outputs images that are 4 to 5 MB in size. If you are a
professional photographer then you should go for high pixel cameras; beginners
can look at low or mid-end cameras.
3. Weight
You should also
not forget the camera weight. A large and heavier camera is difficult to carry.
It is also more difficult to keep it still when shooting. You should therefore
select a camera that you can focus with ease.
4. Capacity
The
number of images a camera can take before you download them on to your computer
may not be a problem if you are shooting near your computer. Of course, it does
matter if you are shooting outdoors in that case you should choose a camera that
will store enough images. You should therefore go for large memory cards or
several small memory cards. This will allow you the luxury of long photo shoots.
5. Lens Quality
Mid range cameras have a single lens with or
without zoom facility. For shooting objects from a close range (around less than
1.5 feet) choose a camera with a macro option. High-end cameras, that are
basically 35mm. SLR (Single Lens Reflex)) cameras, come with changeable lenses
but can cost quite a lot. They are more useful for professional photographers.
Beginners need not burn money on them.
Network camera server:
TYHO wireless network video server
designed specifically for wireless video surveillance.
DM642 products based on the embedded system design
1500e network video servers
1500e through ISDN, PSTN, or xDSL Router, LAN,Wide
Area Network or the Internet to facilitate international
interconnection to achieve video transmission
1320e IP network video servers
carries a one analog video input;a conventional analog video output.
Wireless network camera:
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