Control Electronic Security Globe

 

Control Electronics Security - local and international - license #EFB-831
The Security Camera Store

español · home · contact · about us ·  

» Home
» Cameras/CCTV
Board Security Cameras/Mini Security Cameras
- More Mini Color and B&W Security Cameras
- PC Board Color Security Cameras
- PC Board B&W Security Cameras
Bullet Security Cameras
- B&W Bullet ecurity Cameras
- Color Bullet Security Cameras
- Infrared Day and Night / Bazooka series / Motorized Zoom Bullet Security Cameras
Hidden Covert Cameras / Hidden Cameras / Spy Hidden Cameras
- More Covert Security Cameras
Counter Surveillance
Digital Security Video
Dome Security Cameras
- Speed Dome Systems
(Speed Dome PTZ Cameras)

- High speed Control Box
- High Speed Domes
- Mediun Speed Domes
- Slow Speed Domes
- High Speed PTZ
- More Dome Security Cameras
- Flush mount UFO style Dome Cameras
- Vandal proof Dome Cameras
Hi-Tech Systems
Internet Panasonic Security Cameras
Monitors
Motion Detector Hidden Cameras
Pan Tilt Zoom/PTZ Security Cameras
Professional Security Cameras
- Color Professional Security Cameras
- Black and White Professional Security Cameras
Specialized cameras
Quads / Multiplexers
Transmitters & Receivers
Video Recording Devices
New Watec Cameras
-Discontinued Watec Security Cameras
Zoom Security Cameras
Digital Cameras
Accessories
Lenses
» Metal Detectors
» EAS, Electronic Article Surveillance
» Tiger Teeth-tire shredder
» Traffic Control
» Guard Tour, Guard Clock
» Gates
» Security Booths
» X-Ray Scanners
» Counterfeit Detection
» Perimeter Protection
»Access Control
» Intercoms
»Burglar Alarms
» Audio Recorders
»Vehicle Search
»Explosive Transport
» Fire Alarms
»Bullet Proof Vests
»Contact Us

CES
8730 Azalea Ct
Suite 202
Fort Lauderdale, Fl 33321

Phones: 786 367 6090

En español: 305 815 9141

8730ces@gmail.com security@mgscontrol.com sales@mgscontrol.com

 

 

Lenses

Complete Lens Line

We carry a complete line of lenses: fixed, varifocal, auto iris, and motorized zoom. We have lenses for all of your video needs.

Contact us for details.

Complete Lens Line
click for larger view

Frequently Asked Questions

The following are the three most frequently asked questions:

1. What is the size of a CCD imager?
Expect 1/3", 1/2", rarely 2/3".
If the CCD imager is 1/3" you need a 1/3" lens (1/2" and 2/3" will work).
If the CCD imager is 1/2" you need a 1/2" lens (2/3" will work).
If the CCD imager is 2/3" you need a 2/3" lens.

2. Should I use a manual iris or an auto iris lens?
You can save money by using a manual iris lens when the scene illumination never changes, for example, an illuminated store, office or inside a warehouse.

An auto iris lens is always a better choice, especially when there is outside light or direct light where the camera is pointing.

3. What focal length lens do I need?
The smaller focal length number, the wider the field of view. If you have a camera in an office or warehouse and you want to see as much as you can, you should use a 2.9mm or 4mm lens (wide, somewhat distant view). If you want to observe a limited area, like an entrance, or if you want to see detail close up, use an 8mm or 12mm lens (narrower view and objects are closer).

The rule: use varifocal lenses for flexibility and the best field of view.

Lens Chart (Field of View)

Lens Size 

Viewing Angle

5' Away

10' Away

15' Away

25' Away

50' Away

100' Away

(mm)

H

V

H

V

H

V

H

V

H

V

H

V

H

V

2.9

90º

67º

10.0

6.6

20.0

13.2

30.0

19.9

50.0

33.1

100.0

66.2

200.0

132.0

3.6

74º

55º

7.5

5.2

15.1

10.4

22.6

15.6

37.7

26.1

75.4

52.1

151.0

104.0

6

42º

32º

3.8

2.9

7.7

5.7

11.5

8.6

19.2

14.4

38.4

28.7

77.0

57.0

8

32º

24º

2.9

2.1

5.7

4.3

8.6

6.4

14.4

10.7

28.7

21.3

57.0

43.0

12

22º

17º

1.9

1.5

3.9

3.0

5.8

4.5

9.7

7.5

19.4

14.9

39.0

30.0

16

15º

11º

1.3

1.0

2.6

1.9

3.9

2.9

6.6

4.8

13.2

19.6

26.0

19.0

Technical Information:
Auto Iris Lens:
a lens in which the iris aperture automatically opens or closes to maintain proper light levels on the faceplate of the camera pickup device.

Video Type Auto Iris Lens: an auto-iris lens with internal circuit which receives voltage and a video signal from the camera to adjust the iris.

DC Type Auto Iris Lens: an auto-iris lens without an internal circuit to control the iris. All iris control voltages come from a circuit located within the camera.

Manual Iris Lens: a lens with a manual adjustment to set the iris opening (f-stop) in a fixed position. Generally used for fixed lighting applications.

Angle of View: the angular range that can be focused within the image size. Small focal lengths give a wide angle of view, and large focal lengths give a narrow field of view.

F-Stop: a term used to indicate the speed of a lens. The smaller the f-number, the greater is the amount of light passing through the lens.


· Bulletproof Clothing and Vehicles
· General Security Consulting

 
 

 

 

home · cameras/closed circuit tv · metal detectors · electronic article surveillance · tiger teeth · guard tour · gates · x-ray scanners · counterfeit detection · perimeter protection · access control · intercoms · burglar alarms · vehicle search · explosive transport · fire alarms · personal protection · contact

Using technology to protect lives, facilities, and assets

©2001-2012 Control Electronic Security and its licensors. All rights reserved.