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Cctv Lens
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Getting the Best Image Quality (Part 2)
This is the 2nd is a series of articles about getting the best possible image quality in your CCTV installation. The first article was a synopsis of things that can go wrong.
First: The lens. Do not ignore the importance of buying a quality, well-made lens from a reputable manufacturer or distributor. The lens, on the front of your camera, is the point at which your surveillance system begins. It is CRITICAL to understand that the front edge of your lens is the BEST your signal is ever going to get. The light you are gathering from the real world is captured there, and you CANNOT improve on it. You can only make it worse from here on in. Should you choose to gamble on a ”budget” lens, and lose that gamble, you are setting yourself up for failure with the rest of your project.
There are a great many things that affect the quality of a CCTV lens. The materials it is made from, the accuracy of the shape and spacing of the optical elements, the aperture and iris, whether it is auto or manual iris, etc… Personally, I find that for a startup CCTV business, it helps to have some various lenses lined up, and to know exactly where to get them. I tend to lump them in two grades. You can buy cheaper or nicer lenses, but these two cover 95% or more of all CCTV installations.
Grade 1 - Utility. These lenses are fine for some typical installations. We’re talking retail outlets, gas stations, restaurants and bars, factory floors; the list goes on and on. These people are looking for good solid relationships and cost-sensitive installations that are of good quality. You find these lenses by bench testing. Spend the $150 or so to buy 3-5 lenses of each standard size, and test them side by side. Pick the one you like, in each size, and keep a few on hand. Lens suppliers should be able to get you quality lenses quickly and with NO damage.
...Lens Directory
Cctv Lens - Yahoo! Shopping
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PENTAX Imaging Company
Pentax's Quality CCTV Lenses for Security, Surveillance, Monitoring, Public Safety, & Factory Automation. ... CCTV Lens Catalog. Learn CCTV Lenses. Purchase ...
SOEST CCTV LENS
Quanzhou SouthEast Co., Ltd is a professional designer and manufacturer of CCTV lenses(cctv lens cctvlens) ... Thank you for your visit SOEST at IF... IFSEC ...
CCTV LENS DEPOT with complete selection of lenses used with CCTV ...
Complete selection of lenses for CCTV use with 1/3 inch, 1/2 inch lenses in fixed or auto iris formats, C or CS mount ... this extraordinary CCTV lens. ...
Varifocal CCTV Lenses
Varifocal CCTV Lenses - Varifocal lenses offer maximum flexibility in camera ... CCTV Camera's. CCTV Lenses. DVR's (Digital Video Recorders) Matrix Systems/Keyboards ...
Goods by Amazon
CCTV: lens is more. (closed circuit television): An article from: Security Management
Book (American Society for Industrial Security)
List Price:$5.95
Price: $5.95
Pentax TS10V518E - CCTV lens - vari-focal - auto iris - 1/3", 1/4" - CS-mount - 5 mm - 50 mm - f/1.8
Photography (Pentax)
List Price: $104.00- With True Enhanced Performance.
- Latest Technical Development.
3.5-8mm Lens 1/3" Sony CCD Day/Night CCTV Security Body Camera Kit with Free Camera Mount Bracket 12 V 500 ma Camera Regulated Power Supply and 100ft Video Power Cable SC15GLKC 1OR
CE (DIGIAIR)- Powerful functions: Auto Electronic Shutter (AES), Auto Iris(AI), Auto Gain Control (AGC), Auto White Balance (AWB), Back Light Compensation (BLC)
- High sensitivity, low smear, high anti-blooming, and high S/N ratio; Supports both C and CS mount lens(Sold separately)
- Employs Digital Signal Processor (DSP) chip-set for image control; 420 TVL, 0.01Lux
- Color Camera with 1/3" SONY Super HAD CCD sensor in metal case
- Supports Auto Iris Lens: both Video-Drive DC-Drive lens; Built-in anti-alasing and IR-cut optical filter,with Free Camera Mount Bracket 12 V 500 ma Camera Regulated Power Supply and 100ft Video Power Cable
1/3" Sony CCD IR CCTV Security Surveillance Color Dome Vandal Proof Camera 4-9mm Lens with Free Power Supply and 100 ft Cable 1O9
Office Product (DigiAir)- Image Device: 1/3" Sony Super HAD CCD; Effective pixels (HxV): 768 x 494; Horizontal Resolution: 420 TV Lines
- Sensitivity: 0 Lux ( IR LED ON); Signal to Noise Ratio: More than 48dB; TV system: NTSC Standard
- Type: Color DSP; CDS Sensor: Automatic CDS sensor; Construction: Weatherproof Aluminum Housing
- Lens: f 4~9mm Varifocal Manual; Power Video Output: 1Vp-p, 75 ohm
- Power Requirement: 12V DC Regulated 500mA+; Power supply and 100 ft Video power cable included
Elmo T3425M - CCTV lens - 1/2" - 25 mm - f/3.4
Photography (ELMO)
List Price: $2.73- Keeps hands warm in pockets or gloves for up to si
- Activates when exposed to air
- Average temperature 140 deg. F, maximum 155 deg.
- Ideal for work or play in cool weather
- 3" x 4"
Arecont LENS4-10 - CCTV lens - vari-focal - manual iris - 1/2" - C-mount - 4 mm - 10 mm - f/1.8
Photography (Arecont Vision)
List Price: $135.00
Ultra High 540TVL Resolution Box Camera w/ 5-100mm CS-mount Auto Iris Varifocal Telephoto Lens --- Top of the line CCTV quality and best for the clear face verification --- Unique electronic gadget gift for him for store security ***Special $200 off from Reg. $1,299***
Single Detail Page Misc (Y-TECH)
List Price: $1,299.00- Ultra High 540TVL Resolution Best for Crystal Clear Video Evidence
- 0.00001 LUX in BW Mode / 0.08 LUX in Color Mode Virtually sees in the darkness
- 1/3" Sony Double Density Color CCD DDS (Slow Shutter Speed)
- RS-485 Communication Port for PTZ Remote Control
- 5-100mm CS-mount Auto Iris Varifocal Telephoto Lens
Infrared Camera Wide Angle YY_F25A530 1/3" Sony Superhad Color CCD DSP Waterproof Indoor/outdoor Infrared Illumination Nightvision 3.6mm Lens 5mm 30 Leds Camera Ip66 Silver (90 Degree Wide Viewing Angle) with Free Mounting Bracket
CE (YY Trade Inc)
List Price: $99.00- 30IR LED 420 TV lines high resolution base on the 1/3" SONY SuperHAD CCD sensor.
- Infrared Lenses f 3.6mm super wide angle; 0 lux with IR LED; Built in IR illuminator effective up to 75 feet 50°
- 0.5Lux@F1.2(0Lux@IR On) Built in light sensor; Auto iris AES; Video out: composite output 1.0Vp-p at 75-ohm; Electronic shutter: 1/50 - 1/100000 seconds
- Distance up to 75 Feet, Sunshield, Anti-ultraviolet; Water, dust and crush resistant glass coating; Weatherproof housing
- 12V DC Input, Dimensions 72mmW x 75mmH x 126mmL, Free universal mounting bracket
1/3" SONY CCD DAY NIGHT CCTV CAMERA with 3.5-8MM LENS SC15GLK 1AK
Office Product (VideoSecu)
List Price: $199.00- Color Camera with 1/3" SONY Super HAD CCD sensor in metal case
- Employs Digital Signal Processor (DSP) chip-set for image control; 420 TVL, 0.01Lux
- High sensitivity, low smear, high anti-blooming, and high S/N ratio; Supports both C and CS mount lens(Sold separately)
- Powerful functions: Auto Electronic Shutter (AES), Auto Iris(AI), Auto Gain Control (AGC), Auto White Balance (AWB), Back Light Compensation (BLC)
- Supports Auto Iris Lens: both Video-Drive DC-Drive lens; Built-in anti-alasing and IR-cut optical filter
IR filtered Super Sensitive Covert Micro Pinhole Camera w/ 0.005 LUX, 3.7mm Multi-layer Flat Pinhole Lens for Hidden Spy Video Surveillance --- Make your own CCTV Covert Video Surveillance Gadget --- Cool gadget gift for him Covert Nanny Cam for her *** Special Discount $20 off from Reg. $169 ***
Single Detail Page Misc (Y-TECH)
List Price: $169.00- Ultra Micro Size, Built-in Special IR Filter
- 3.7mm Super Multi-layer Pinhole Lens (FOV: 90º Diagonally
- Sony 1/3 inch Super HAD Color CCD, 420TVL Resolution
- 0.005 LUX - Virtually sees in the dark
- Built your own covert video gadget
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Lens Media
Shot on Pentax Spotmatic SP1000 with SMC Takumar 55mm/Æ’1.8 on Ilford Delta 400.
7.5 minutes at 22ËšC - Ilford Ilfotec HC (1+31)
© Robert Turner 2008, any unauthorised use constitutes an infringement of copyright.
Security camera, London
A couple of CCTV lenses that I am no longer using.
The left one is a "pinhole lens", which just mean that it has a small front, and not that it actually has a pinhole. It is 10mm f/2.8 with what looks like 2 elements in the lens. The lens quality is horrible, and tightening...
A couple of CCTV lenses that I am no longer using.
The left one is a "pinhole lens", which just mean that it has a small front, and not that it actually has a pinhole. It is 10mm f/2.8 with what looks like 2 elements in the lens. The lens quality is horrible, and tightening...
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