How do I choose the correct camera for my application?
This in general is a comparatively difficult decision. Many aspects of the installation must be taken into consideration in order to obtain the correct performance that meets your requirements.
A high resolution camera should be considered where greater detail of scene is required. E.g. Colour 460 TVL, Monochrome 570 TVL. Choosing a more sensitive camera will improve reproduction in poorly lit areas. The sensitivity of a camera is indicated by the minimum amount of light in order for the camera to produce a usable picture. e.g. Colour 1.0 Lux at F1.2.
A conventional camera produces a pale backdrop when an object is shot against a bright background. BLC (Back Light Compensation) will counter strong light sources retaining picture quality.
Concentrated light sources directed towards the camera (e.g. car head lamps) can be inverted by an optional peak white inverter or an eclipser function. This has the effect of bringing detail to areas and making an object clear, that would otherwise be shadowed.
How do I set up a camera and lens for use in Low Light conditions and or with Infra Red Lighting?
I have installed a new camera and lens why am I unable to obtain a sharp image?
Why do I have a clear sharp picture during the day and it is out of focus at night?
When can I use a manual iris lens?
How do I back focus a camera fitted with a fixed focal length lens?
Can I fit a 1/3" Lens to a 1/2" camera?
How do I connect an Auto Iris lens to a camera?
What is the difference between Auto Iris and Direct Drive Lenses?
Does the ‘f’ stop matter when choosing a lens?
How do I Back Focus a camera fitted with a ZOOM Lens?
How do I set up an Auto Iris lens?
What size monitor should I be using?
What is Video Termination?
What camera housing should I use and at what IP Rating?
What is the difference between simplex and duplex multiplexers?
What is the difference between Standard VHS and SVHS recordings?
Which pan and tilt unit should I use?
What type of illumination can I use with colour cameras?
Can I use I/R Lamps with colour cameras?
What is an ISDN Telephone Line?
What is a PSTN Telephone Line?
What is full picture update?
Do I have to use a Regulated Power Supply?
What is the maximum distance I can run 12vdc when powering a camera?
What is the difference between RG59 and URM70 Coax?
How can I eliminate ground loop faults?
What is the correct level for a video picture?
How often should I replace my video tapes?
Manual or Auto Iris Lens?
How often should I replace my IR Lamp Bulb?
What is a network camera?
Is the technology reliable?
Will the camera deter intruders?
If I rent out my home, how can I assure the occupants that I will not use the camera to spy on them?
Won’t tenants be able to plug a phone into the phone socket and make lots of international calls at my expense?
So I can plug my own PC into the router when I am at my property and use the broadband line for my own purposes?
What if an intruder disables the camera?
What if a tenant or cleaner switches the camera off at the mains, or if there is a power cut, or a temporary fault on the phone line?
Who owns the camera and other equipment?
Who has access to the camera images?