Maxi Security Cameras
Surveillance Maxi Cameras | CCTV
Maxi Camera | Day Night Vision Maxi Cameras | Zoom Auto Focus
Maxi Camera | Security Maxi Cameras | Maxi IP Network Camera |
Maxi Dome Cameras
! TRUE ! Day Night InfraRed
Colour Maxi Security Cameras
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! MAXI !
IP CCTV Cameras | Network CCTV Cameras
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CCD BETTER
THAN CMOS Low-Noise High-Sensitivity
IP Network CCTV Day Night AV Camera
500 H-Pixels 0.05 Lux Two-Way Audio RS485 Mechanical Movable
IR-CUT Filter for vivid Colour Rendition & maximum
Low Light & Infrared sensitivity CCTV IP Network Security
Camera, ⅓" SONY Image Sensor free 36 Channel Remote
View Recording Security Software
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IP-IRdnHRwd H.264 Vandal Network Security Camera
only
$359
H.264 Network Security Camera
Best for
Motion & Low-Light
740 H-Pixels 0 Lux with IR LEDs Wide Dynamic Range
Mechanical Movable IR-CUT Filter for vivid Colour Rendition
& maximum Low Light & Infrared sensitivity
Automatic Iris Variable Focal Length Lens corrected for
Visible-Infrared focus shift Day / Night InfraRed Night
Vision CCTV IP Network Camera ⅓" SONY Image Sensor
SEE-in-the-DARK |
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Day Night Colour
Infrared Light Emitting Diode (Night Vision) Cameras
Colour Day
Night CCTV Security Cameras with inbuilt
Infrared Light Emitting Diodes "See-in-the-Dark" and
produce images when visible illumination is zero.
At average
levels of illumination these CCTV Cameras produce
Colour images, depending on their
sensitivity (Lux) at low illumination levels and in total
darkness the image is Monochrome.
These CCTV
Cameras generally have a relatively high sensitivity image
sensor and
Fixed Iris Lens therefore under high illumination levels
images will be overexposed for the reasons outlined
here.
Ordinary
Colour CCTV Cameras are relatively insensitive to Infrared
because they have an IR CUT Filter between the Lens and Image
Sensor, this filter excludes Infrared radiation with a
wavelength greater than ~ 700 nm that would otherwise adversely
affect White Balance, Colour Rendition and Image Sharpness.
Day / Night
Colour CCTV Cameras are sensitive to Infrared because they
either do not have an IR CUT Filter or utilise a special NOTCH
IR CUT Filter that excludes the wavelengths most harmful to
colour quality (720 ~ 830 nm) from reaching the Image Sensor.
A Colour CCTV
Camera that does not have an IR CUT Filter usually has
poor colour rendition
characterised by a Pink-Red
'tint' when the illumination is InfraRed rich,
use of a 'Notch' Filter helps however White
Balance, Colour Rendition and Image Sharpness are compromised
for Infrared sensitivity. (Image Sharpness can be restored by
using a specially designed Lens that corrects the focus shift
between Visible and Infrared)
The IDEAL Day
/ Night Infrared Sensitive Colour CCTV Camera would utilise an
Automatic
Iris Lens to cope with high illumination levels and the Lens
would also have a large aperture (low 'F' number) to maximise
light transmission when illumination levels are low * it would
also utilise a Traditional IR CUT Filter when illumination
levels are adequate for Colour and then REMOVE the IR CUT Filter
when levels are low
Dome-DayNite,
Maxi-DayNite,
Dome-D/NiteEx,
Maxi-D/NiteEx &
CCS-IRdnWD have these features and are
recommended for OPTIMUM results - the ULTIMATE
SOLUTION is
AutoCam-dn or
DomePTZ-dn2 or
DomePTZ-dn3 these also have
Automatic-Focus to ensure crisp images regardless of
illumination source.
Infrared rich light sources include
Daylight and most Filament type lamps including common Spot
lamps, Tungsten lamps, Halogen lamps, etc.
The majority
of Light emitted from 'Cold' type sources such as Fluorescent,
Mercury Vapour, Sodium Vapour, etc., is visible, these sources
contain little Infrared energy.
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