Lens Cctv
5 things to have perfect CCTV
1. Buy what you need. Every business has different CCTV needs. Some don’t need CCTV at all. Banks needs top level CCTV and a Barber Shop might need 2 good cameras only. Some businesses only need dummy cameras, and a dummy “protected by” sign. So before you get a quotation think “what do I really need? What are my objectives”.
2. Locate cameras correctly. Is the camera in the right position? Do you want to record the face or the back of the head? Cameras for monitoring purposes should be higher than eye level so they can see more. Cameras for identification and recognition should be at eye level so the best image of the face is captured.
3. Buy the right camera and lens. Can you choose right lens? Some people who try to do it themselves buy CCTV packages off a shelf. These packages usually have 4 cameras, all with the same wide lens, which can’t be adjusted. Wide lenses can only monitor. Wide lenses can’t be used for recognition and identification, because they do not give a clear image of the person. Evidence without recognition and identification quality images will not stand up in court.
4. Buy the right Digital Video Recorder (DVR). If the recording of live pictures is required then a higher specification of resolution – image quality – is required of the DVR. Cameras have four different technical levels of resolution. Highest quality is D1 then 2CIF, CIF and QCIF. Resolution quality must be balanced against recording speed to achieve higher specification objectives. Live pictures need at least 25FPS (frames per second). We recommend that identification cameras should have 2CIF resolution, at least, with the highest frame-rate, and that monitoring cameras use CIF quality at least. The DVR must support these requirements. Most DVR manufacturers say they achieve resolution and frame rate targets, but some don’t actually do the job required.
5. Don’t try to do it yourself. Some of people think that CCTV instalaltion is easy, but as experts we know it is not. CCTV technology is developing fast, so if you are not informed about up to date equipment, and recent technical advances you will miss out. Of course you can buy a kit and a manual in an electronics store, but are you sure it’s what you need, and are you sure it will work? How much time you will spend? Is it worth of it? Your result will most likely be a maximum 10% of potential and your money will be lost. A good professional will achieve NSI A standard. Can you?
About the Author
This article was written by Sergejs Laicuks, Senior Technical Engineer for CCTV Camera Europe Ltd . This information is his experience to date.
a ebay seller has listed 6.7mm 1.3 super wide century movie lens?
THIS SELLER INSIST CENTURY WEST WAS A COMPANY FROM 20 YEARS AGO OUT OF BUSSINESS. THIS IS NOT TO BE CONFUSED WITH CENTURY OPTICS/SCHNEIDER NO SEARCH I HAVE DONE HAS ANY RECORD THAT A CENTURY WEST COMPANY EVER EXISTED. PLEASE FORWARD ANY INPUT. I FEEL SELLER IS USING “CENTURY OPTICS TO CONFUSE BUYERS WITH WHAT LOOKSLIK A CCTV VIDEO TV LENS.
I looked at the auction in question… The guy has great feedback and there are several people bidding…but what bothers me is that there are no pictures of the barrel of the lens, and no pics showing any maker’s markings. My gut says it’s probably OK, but I’d want to see more pictures before bidding. Ask him for more pics. Bear in mind this is a movie camera lens, and not for a still camera. If you are in doubt, then pass. I do hope this helped somewhat.
The Mijonju Show – f0.95 C mounts Lens and CCTV lens for Micro 4/3 cameras. VIDEO TEST
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3.6mm Lens 1/3″ CCTV Black for Security Box CCTV Camera $5.03 |
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1/3″ CCD PAL System 8mm Lens 36 LEDs CCTV Color Camera $78.16 |
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Safety 3.6mm Lens 36 LEDs IR Dome Video CCTV Camera $37.67 |
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4 CAMERA SECURITY SURVEILLANCE SYSTEM BOARD CCTV COLOR ZOOM 3.5 – 8 MM LENS RT $37.50 |
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3.6mm Lens 1/4″ CCD PAL Infrared CCTV Camera w Bracket $48.88 |
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Fixed 2.8mm Focal Length F2.0 Surveillance CCTV Lens $8.53 |
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Safety CCTV Camera 1/3″ Format F1.2 4mm Fixed Iris Lens $5.88 |
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Silver Tone Shell IR Color Waterproof 4mm Lens CCTV Camera $69.36 |
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2.8mm Wide Angle Lens Fixed CCTV IR Board 115° Degrees for 1/3″ and 1/4″ Camera $8.50 |
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3.6mm Lens 48 LEDs Outdoor Security IR CCTV CCD Camera $42.03 |
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Security 1/3″ CCTV Camera Lens with 12mm Focal Length $6.72 |
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1/3″ CS Fixed IRIS CCTV Surveillance Camera Lens 12mm $7.80 |
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CCTV Camera CS Mount 12mm Focal Length Fixed Iris Lens $7.90 |
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Black 1/3″ Format IR Fixed Iris Lens for CCTV Camera $7.04 |
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6mm Lens 32 LEDs Infrared Colored Video CCTV CCD Camera $41.89 |
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4 CAMERA SECURITY SURVEILLANCE SYSTEM BOARD CCTV COLOR ZOOM 3.5 – 8 MM LENS RT $37.50 |
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F2.0 Aperture 12mm Mount Board Lens for CCTV Camera $6.82 |
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CS Mount F2.0 2.5mm CCTV Board Lens for Security Camera $9.10 |
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Fixed 2.8mm Focal Length F2.0 Surveillance CCTV Lens $8.81 |
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F1.4 4-9mm Manual IR Board Iris Lens for CCTV Camera $12.50 |
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6mm 62 Degree Wide Angle Fixed CCTV Board Lens F2.0 New N $4.99 |
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Digital 420TVL 1/3″ CCD 8mm Lens Infrared CCTV Camera $55.42 |
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6mm Lens 1/3″ CCTV Black for Security Box CCTV Camera $7.61 |
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Focus 8mm IR Fixed Iris Lens for CCTV Security Camera $8.25 |
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Focus 4mm IR Fixed Iris Lens for CCTV Security Camera $8.68 |
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3.6mm Lens 24 LEDs Video Digital Auto IR CCTV Camera $33.16 |
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Surveillance Camera 1/3″ 16mm Focus Length CCTV Lens $7.39 |
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Zoom Board Security CCTV Camera Lens 12MM Focal Length $10.05 |
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F1.8 4mm IR Fixed Iris Lens for CCTV Security Camera $6.86 |
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1/3″ F1.4 Aperture CS Mount Manual 3.5-8.0mm CCTV Lens $17.38 |
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CCTV Camera Replacement 4mm Focal Length Fixed Lens $6.76 |
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Allen Bradley 2801-YF Machine Vision Camera with 12.5mm Navitar CCTV Lens $175.00 |
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3.5-8.0mm Varifocal Manual Iris Lens for CCTV Camera $20.53 |
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Replacement 1/3″ 3.6mm Board Lens Blk for CCTV Cameras $4.81 |
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1/4″ CCD CCTV Ceiling Camera PAL 3.6mm Lens DC 12V $23.10 |
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13 Degree 25mm Focal Length Board CCTV Camera IR Lens $9.29 |
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Black 1/3″ Format IR Fixed Iris Lens for CCTV Camera $6.93 |
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Replacement Security 1/3″ CCTV Camera 12mm Focus Lens $6.59 |
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Computar TG3Z2910FCS 2,9-8.2mm 1/3″ Auto Iris CCTV Lens ***NEW in BOX*** $29.99 |
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StarDot Varifocal Day/Night CCTV lens – 4.5 mm – 13 mm $141.00 |
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8mm Auto Camera CCTV Zoom Outdoor Infrared IR Iris Lens $27.64 |
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3.6mm Lens IR Digital 24 LEDs CCD CCTV Security Camera $33.17 |
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CCTV Lens – 12-30mm Zoom – 1-1.6 – 1/3″ CS – NIB $15.00 |
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Indoor Security 3.6mm Lens 24 LEDs Video CCTV Camera $35.44 |
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6-15mm F1.4 Auto CCTV Camera Varifocal Zoom CCTV Lens $21.43 |
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Security Outdoor Waterproof Home Color CCTV IR Camera Wide Angle 3.6mm lens CMOS $13.50 |
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Mace CCTV camera Board Lens Focal Length 1.78mm $20.00 |
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Security IR 1/4 Sharp CCD Digital 6mm Len CCTV Camera $35.17 |
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New Fixed IRIS 4/6/8/12/16mm CS Mount CCTV Lens Set $4.99 |
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New Auto IRIS 3.5 ~ 8 mm CS Mount cctv lens $5.99 |
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CCTV PIR Covert Pinhole Lens Color CCD Security Camera for Home Surveillance BSX $49.99 |
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Indoor Security 3.6mm Lens 24 LEDs Video CCTV Camera $34.25 |
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Surveillance Camera 1/3″ F1.8 CCTV IR Board Lens 4mm $7.21 |
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Silver Tone Shell 3.6mm Lens 1/3″ IR CCD CCTV Camera $32.20 |
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Surveillance Camera 1/3″ 16mm Focus Length CCTV Lens $7.35 |
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1/3″ F2.0 16mm Fixed Iris IR Board Lens for CCTV Camera $7.16 |
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New Mini hidden Bullet Color Outdoor CCTV Camera 3.6mm Lens 420TVL CMOS $9.99 |
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420TVL Color Surveillance Security CCTV Dome Camera wide angle 3.6mm lens CMOS $7.50 |
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Safety 3.6mm Lens 36 LEDs IR Dome Video CCTV Camera $35.68 |
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CCTV Camera 1/3″ F1.2 Fixed 16mm Focus Length IR Lens $7.46 |
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Black 1/3″ Format IR Fixed Iris Lens for CCTV Camera $7.85 |
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420TVL Outdoor Waterproof IR CCTV Security Camera wide angle 3.6mm lens $14.11 |
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Security Surveillance Camera CCD Lens 6mm IR 36LED 420TVL CCTV Night Vision NTSC $44.99 |
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700 TVL Sony Effio Outdoor 42 IR 2.8-12mm Lens IP66 Security Camera CCTV USA $92.00 |
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700TVL Sony Effio DSP Outdoor 42 IR 2.8-12mm Lens IP66 Security Camera CCTV USA $91.99 |
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420TVL CMOS Outdoor Waterproof IR CCTV Security Camera wide angle 3.6mm lens $10.50 |
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700 TVL Sony Effio-E 42 IR 2.8-12mm Adjustable Lens IP66 Security Camera CCTV $90.00 |
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6 MM Board Security CCTV Camera Lens Focal Length $6.18 |
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4.3mm Focal Length Lens for Security 1/3″ CCTV Camera $5.48 |
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Zoom Board Lens for CCTV Camera w/ 8 MM Focal Length $5.94 |
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36x LED IR 1/3″ Sony CCD 6mm Lens Weatherproof Color Security CCTV Camera 902/K3 $56.99 |
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Vari-Focal CCTV CS Lens 6-60 mm F1.6 DC-Auto Iris for Security Camera $29.45 |
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420TVL CMOS Outdoor Waterproof IR CCTV Security Camera wide angle 3.6mm lens $14.16 |
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CCTV 1/3″ Camera 16mm Focal Length Fixed Iris Lens $6.93 |
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Security Outdoor Waterproof Home Color CCTV IR Camera Wide Angle 3.6mm lens CMOS $13.11 |
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600TVL Dome Cameras 4-9mm Lens CCTV 1/3” SONY CCD HD $85.99 |
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420TVL Outdoor Waterproof IR CCTV Security Camera wide angle 3.6mm lens $16.50 |
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540TVL Mini Hidden CCTV Security Camera 0.01Lux 1/3 SONY CCD Chipset 3.6mm Lens $37.79 |
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420TVL Outdoor Waterproof IR CCTV Security Camera wide angle 3.6mm lens $14.14 |
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1/3″ Sony CCD 36x IR LED Night Vision 6mm Lens Weatherproof CCTV Camera 903/ K3 $59.99 |
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4mm Lens 32 LED PAL CCTV System Infrared CCD Camera New $45.03 |
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Surveillance Camera 118 Degree 2.5mm CCTV Lens F2.0 $12.20 |
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3.6mm Lens 24-LED CCTV 1/4″ CCD Infrared Camera PAL $29.73 |
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Security Outdoor Waterproof Home Color CCTV IR Camera Wide Angle 3.6mm lens CMOS $14.15 |
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420TVL CMOS Outdoor Waterproof IR CCTV Security Camera wide angle 3.6mm lens $14.00 |
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Black 1/3″ CCD 8mm Lens PAL Video IR Color CCTV Camera $61.38 |
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Diebold 41-015539 CCD CCTV Monochrome Security Camera | +3.5-8mm Lens | 1/3″ | $19.99 |
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Pelco MCC1370H-2 CCTV Monochrome Security Camera | 1/3″ | CS Lens Mount | AGC | $19.99 |
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CCTV Camera Replacement F1.4 Monofocal Manual Iris Lens $11.86 |
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Samsung SCC-B2335 600TVL WDR Box Security Camera 5-100mm GV-5-100ADC Lens CCTV $187.99 |
