Security cameras
|
|
Security camera
|
|
|
| OPTIONS |
| Microphone & Preamplifier better pick up than most inbuilt microphones $20 |
| Cat Code: REG12/1.0A Regulated 12 VDC 1 Amp Plug Pack to suit $20 |
| Cat Code: Cable-VP DIY Power/Video Plug-In 20 metre Cable $30 |
|
No optional Lenses for this Camera |
| All values are approximate. | @ 3 metres | @ 5 metres | @ 9 metres | @ 15 metres |
| Width of Vision with 4 mm Lens fitted to Camera | 3.6 metres | 6 metres | 10.8 metres | 18 metres |
Video System: PAL fully compatible with Australian TV System.
Image Device: 753 (H) x 582 (V) 438 246 Pixel ⅓" D4 PANASONIC Interline Transfer CCD Sensor, due to the sensitive nature of the chip manufacturing process there may be more imperfections in the photodiodes in this Special CCD Image Sensor than in an ordinary sensor, click here for more info.
Lens: Board Type 4 mm Focal Length, there are no Accessory Lenses for this Camera, additional information here.
Scanning System: 2 : 1 Interlace PAL 50 Hz vertical, 15 625 Hz horizontal.
Synchronisation: Internal.
Video Output: 1.14 V p-p Composite Video 75 ohms, suit Australian TV, VCR, AV & Video inputs, BNC socket on ~ 30 cm cable.
Horizontal Pixels: 700 + (this value is provided for comparative purposes only) Better than VHS & better than Super-VHS resolution.
Sensitivity: ~ 0.5 lux @ F1.2 (this value is provided for comparative purposes only), 0 lux with LEDs 'ON'. The Infrared LEDs illuminate ~ 95% of the Width-of-Vision and are effective up to approximately 15 metres depending on the reflective characteristics of subject.
Light Emitting Diodes: Twenty One ~ 850 nm wavelength Infrared, these produce a dull Red visible glow. Automatic Light Sensor switches LEDs On/Off depending on light level.
more
Automatic Electronic Shutter (AES): 1/50 to 1/100 000 second, 20 milliseconds to 10 microseconds, additional information here.
Automatic Gain Control: Yes.
Spectral Response: ~ 400 to ~ 1100 nm with Infrared 'CUT' Filter 'out' of optical path, additional CCTV Infrared Night Vision information.
White Balance: Automatic.
Signal to Noise ratio: 48 + dB, measured with AGC off.
Power Requirements: 12 Volts DC Regulated, ~ 400 milliamps with LEDs On, 2.1 x 5.5 mm DC socket, center pin = (+), ~ 30 cm cable.
Dimensions: ~ 75 mm Diameter, ~ 115 mm Long including cable Union, ~ 460 grams. Hood ~ 150 mm Long, ~ 80 mm Wide, ~ 85 grams.
Made in Taiwan in an ISO 9001 certified factory.
Manufacturer's Experience: 30 + Years.
Need Sound ? click
here
|
Day Night Colour Infrared Light Emitting Diode (Night Vision) Cameras Colour CCTV Day Night 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 Cameras produce Colour images, depending on their sensitivity (Lux) at low illumination levels and in total darkness the image is Monochrome. These 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, an exception is MINI-COL-IR which has a special Wide Dynamic Range allowing it to cope with higher illumination levels than ordinary Cameras. Ordinary CCTV Colour 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 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-dn these also have Automatic-Focus to ensure crisp images under all conditions. 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. SUMMARY: "See-in-the-Dark" Infrared capability is a trade-off that affects Colour Quality particularly in "Infrared Rich" environments.
|
Ancillary Products
|
low-cost Flexible Twisted Pair Cat-5
Telephone Cable Power-Up-Cable |
|||
| TV/VCR INTERFACE MODULE | Things | ||
| Infra-Red Illuminators | Filters | ||
| BUNDLED-PAKS | PC Related Products | Lenses |
Use your Browser "Back Button" to return to previous page
