The size of the camera CCD
Important parameter is the size of the camera CCD. The camera has an impact on the viewing angle.

The use of a lens with a larger format than the format of the camera sensor to decrease the angle of view. This combination gives in turn increased the resolution and image quality, because it is used only to measure the CCTV Lens where the optical elements are polished with greater precision.
There are the typical standard-definition cameras – monochrome and color 420/480 line – 350 to 580 lines, which are well fulfill its role in the observational systems.
The use of security cameras with improved resolution – 570/600 and 460, respectively line allows you to read later registered. So better performing camera, equipped with good quality lens and the cover of the heaters equipped with a thermostat will certainly not fail the expectations and ensure the generation of good images in all conditions.
Due to the nature of the observed object, ie children and adolescents should take into account the camera, which may be vulnerable to accidental or intentional damage.
In order to limit direct access to the camera to be used in the assembly of the upper parts of the premises, apply additional housing that will prevent such change in position of the lens focus ring. Stable fixtures – which are not sensitive even to hit such a ball.
Gives much better results use the handles of metal twisted "traditional bolt" rather than cheap plastic handles with ball-joint.
In the case of ceiling Dome Cameras we use with polycarbonate vandal enclosures. More info on Security System Blog and Security System Forum!
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