Manual Vari Focal

Security and Surveillance Camera Lenses
As with regular surveillance cameras, the lens on a surveillance camera determines how wide an image is created and how much light is let in.
The lenses you purchase should match the format of your surveillance camera: 1/4" lenses work best with 1/4" cameras. It is possible to use a larger format lens than the surveillance security camera calls for, but it is not recommended.
Also, fixed focal length lenses offer only one set field of view and are the least costly. To change the resulting image, you need to use a different lense. Variable focal length camera lenses and zoom lenses offer greater flexibility, allowing you to adjust your image's field of view. Motorized zoom lenses, the most costly type available, give you the ability to control your cameras remotely. If you want to zoom out for general surveillance and in for detail when you spot suspicious activity, motorized camera focus is preferable.
If you will be using the surveillance camera outdoors, look for a lens with an automated iris. As in the human eye, the iris of a lens is what controls the amount of light coming into the surveillance camera. Automated irises can significantly improve performance for outdoor cameras, where light levels vary considerably. However, you can save money and use a manual iris lens when the scene illumination never changes, for example in an illuminated store or office, but we do not recommend it.
Dome housings like this protect PTZ cameras and hide their orientation.
Pan, Tilt, Zoom
For advanced security applications, you may want a pan, tilt, zoom (PTZ) camera. With the right equipment, a camera operator can pan (scan left and right), tilt (look up and down), and zoom in and out. The significant catch is the cost: PTZ systems are a higher cost than fixed cameras, however most users find them the most effective for surveillance.
Camera Housings
Cameras need to be protected from potential harsh elements. Housings can range from simple coverings, to impact-resistant protection, to outdoor housings that include heaters and blowers for cooling. A more specialized type of housing is the dome: tinted Plexiglas hemispheres that prevent subjects from seeing which direction a camera is pointing. Choose the right housing based on the placement of the surveillance camera and its expected usage.
About the Author
Mark Allen is a frequent writer on surveillance cameras.
2.8-12mm Vari-Focal Manual Iris Len 1/3'' CS Mount F1.4-360 Wide Viewing Angle 120-25 Degree
![]() Professional Waterproof IR Dome Outdoor Security Camera - 1/3" Sony CCD, 560 TV Lines, Vari-focal 4~9mm Manual Lens, 82ft IR Distance, Low Illumination 0 Lux (with IR LED on). Great Image, Great for Entrance (Power Adapter Included) List Price: Sale Price: $69.00 You save: $91.00 (57%) Eligible for free shipping!Availability: Usually ships in 1-2 business days |
![]() 1/3" Sony CCD 700TVL Security Dome Indoor Surveillance Video Camera - 36 IR LEDs, Vari-Focal 2.8~10mm Manual Zoom Lens. WDR(Wide Dynamic Range). OSD Menu. Low Illumination 0.001 Lux (with IR LED on). Great Image, Great for Entrance. |
![]() Professional Weatherproof Dome IR Security Outdoor Camera - 1/3" Sharp CCD, 540 TV Lines, Vari-focal 4~9mm Manual Lens, 82ft IR Distance. Low Illumination 0 Lux (With Ir LED On). Great Image, Great for Entrance (Power Adapter NOT Included) List Price: Sale Price: $65.00 You save: $85.00 (57%) Eligible for free shipping!Availability: Usually ships in 1-2 business days |
![]() Ultrak KC552BCN CCTV Color Used Surveillance Security Camera With 3.5-8mm Vari Focal Manual Iris Lens, 1/3 inch Sony CCD Sensor, Requires 24 VAC power, Customizable Dip Switch Settings Back Light Compensation, AWB, Shutter Sale Price: $45.00 Eligible for free shipping!Availability: Usually ships in 1-2 business days |
![]() New Arrival Professional 1/3" Sony Exview HAD CCD II, 700TVL CCTV Vandalproof Dome Indoor Security Camera - Vari-Focal 2.8~12mm Manual Zoom Lens, 36 IR LED, WDR, OSD Menu, 0.001 Lux (Include Power Adapter) List Price: Sale Price: $112.00 You save: $78.00 (41%) Eligible for free shipping!Availability: Usually ships in 1-2 business days |
![]() 1/3" Sony Super HAD CCD II 650TVL Security Dome Indoor Surveillance Video Camera - 36 IR LEDs, Vari-Focal 4~9mm Manual Zoom Lens. WDR(Wide Dynamic Range). OSD Menu. 0 Lux (with IR LED ON) |
![]() Nikon Coolpix P90 12.1MP Digital Camera with 24x Wide Angle Optical Vibration Reduction (VR) Zoom and 3 inch Tilt LCD Sale Price: $599.00 Eligible for free shipping!Availability: Usually ships in 1-2 business days |
.
Find cool shopping deals for Manual Vari Focal, today.
![]() |
![]() 6 60mm manual Iris Vari Focal CCTV Camera CS Mount Lens $28.99 Time Remaining: 27d 9h 39m Buy It Now for only: $28.99 |
![]() 540TVL 1 3 Sharp CCD Vari Focal 4 9mm manual Len IR Dome Outdoor Security Camera $75.90 Time Remaining: 1h 39m Buy It Now for only: $75.90 |
![]() Manual Iris Vari focal Lens for Box Camera 35mm 8mm Vari Focal Length CCTV $37.00 Time Remaining: 29d 23h 48m Buy It Now for only: $37.00 |
![]() Manual Iris Vari focal Lens for Box Camera 6mm 15mm Vari Focal Length CCTV $37.00 Time Remaining: 29d 23h 53m Buy It Now for only: $37.00 |
![]() 6 36mm Manual Iris Vari Focal CCTV Camera CS Mount Lens $49.00 Time Remaining: 22d 22h 15m Buy It Now for only: $49.00 |
![]() 6 15 MM CCTV Lens CS manual Iris Vari Focal w Lock $14.95 Time Remaining: 29d 22h 13m Buy It Now for only: $14.95 |
![]() 1 3 SONY Super HAD CCD II 480 TVL 28 10mm Vari focal Manual Iris Dome Camera $99.99 Time Remaining: 6d 21h 5m Buy It Now for only: $99.99 |
![]() F14 6 15mm CCTV Lens CS manual Iris Vari Focal w Lock $21.99 Time Remaining: 27d 9h 19m Buy It Now for only: $21.99 |
![]() 1 3 Vari Focal 35 8mm Lens F14 CS Mount Manual IRIS $49.95 Time Remaining: 5d 2h 52m Buy It Now for only: $49.95 |
![]() BOSCH LTC 3361 30 1 3 VARI FOCAL LENS MANUAL IRIS 35 $19.95 Time Remaining: 8d 1h 50m Buy It Now for only: $19.95 |
![]() Honeywell Video HLM28V8F95 28 8mm Manual Iris Vari focal Lens $50.08 Time Remaining: 13d 6h 55m Buy It Now for only: $50.08 |
![]() 6 60 mm 60MM CCTV Camera Lens manual Iris Vari Focal NEW $44.99 Time Remaining: 3d 7h 30m Buy It Now for only: $44.99 |
![]() 6 15mm CS Mount Vari Focal Lens F14 Manual IRIS for CCTV Security Camera bnm $39.99 Time Remaining: 24d 5h 44m Buy It Now for only: $39.99 |
![]() Vari Focal 35mm 8mm CS Security Camera Lens Manual $29.00 Time Remaining: 2d 19h 28m Buy It Now for only: $29.00 |
![]() New 55 33MM CCTV Camera Lens manual Iris Vari Focal DC $45.99 Time Remaining: 22d 13m Buy It Now for only: $45.99 |
![]() 4 Vari Focal 35 8 mm Lens F14 CS Mount Manual IRIS $169.95 Time Remaining: 15d 8h 13m Buy It Now for only: $169.95 |
![]() 6 15 MM CCTV Lens CS manual Iris Vari Focal w Lock $179.99 Time Remaining: 6d 8h 19m Buy It Now for only: $179.99 |
![]() 28 10mm Vari focal 1 3 SONY Super HAD CCD II 480 TVL Manual Iris Dome Camera $94.39 Time Remaining: 22d 20h 47m Buy It Now for only: $94.39 |
![]() 1 3 SONY Super HAD CCD II 480 TVL 28 10mm Vari focal Manual Iris Dome Camera $93.99 Time Remaining: 18d 48m Buy It Now for only: $93.99 |
![]() Security F14 1 3 inch CS 28 12mm Auto IRIS Manual Vari focal CCTV Camera Lens $19.77 Time Remaining: 22d 3h 31m Buy It Now for only: $19.77 |
![]() 35 80mm Manual Vari focal CCTV Lens Made in JAPAN $35.00 Time Remaining: 13d 23h 26m Buy It Now for only: $35.00 |

Eligible for free shipping!































