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Professional
Security Camera Systems & Surveillance Equipment
CCTV security
Camera Lenses
2. What focal length lens do I need?
- Guide:
smaller the focal length number => wider is field of
view.
- If
you have securit camera in the office or warehouse and
you want to see as much as you can, you should go for
2.8 or 4 mm lens (makes wide, somewhat distant view)
- If
you want to observe limited area, like entrance you should
go for 8mm or (makes narrow view and objects are
closer).
-
Give us a call and we can help you determine what security
camera lens will best suit your location.
- Use
varifocal lenses to get flexibility for choosing best
field of view.
3: Order
your
security camera lens from Skyway Security. We have all the
security camera lenses you will ever need!!
The
CCTV security camera lens chart and field-of-view
diagrams are designed to assist you in selecting
the right lens size for your application. Please
contact us if you require additional information
or assistance. Keep in mind all of the security
cameras we sell come equipped with lenses that
will achieve 95% of your surveillance applications.
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CCTV
Security Camera Lens Chart
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Indicates
total viewable area (WxH) at a given distance
based on focal length used
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| Focal
Length |
5'
(WxH) |
10'
(WxH) |
20'
(WxH) |
40'
(WxH) |
50'
(WxH) |
100'
(WxH) |
| 2.5
mm |
9.4x7.1 |
19x14 |
38x28 |
75x57 |
94x71 |
188x142 |
| 2.9
mm |
8.6x6.4 |
17x13 |
34x26 |
69x51 |
86x64 |
171x129 |
| 3.6
mm |
6.9x5.1 |
14x10 |
27x21 |
55x41 |
69x51 |
137x103 |
| 4.0
mm |
6.0x4.5 |
12x9 |
24x18 |
48x36 |
60x45 |
120x90 |
| 4.3
mm |
5.7x4.3 |
11x8.6 |
23x17 |
46x34 |
57x43 |
114x86 |
| 5.5
mm |
4.5x3.4 |
9x6.8 |
18x14 |
36x27 |
45x34 |
90x68 |
| 6.0
mm |
2.0x1.5 |
4x3 |
8x6 |
16x12 |
20x15 |
40x30 |
| 8.0
mm |
1.5x1.1 |
3x2.3 |
6x4.5 |
12x9 |
15x11 |
30x22 |
| 12.0
mm |
1.0x0.7 |
2x1.4 |
3.8x3 |
7.7x6 |
9.6x7 |
19x14 |
Use your 35mm
camera and this chart to help make your lens decision.
35mm to CCTV Focal Length Conversion
Chart
35 mm |
1/4" |
1/3" |
1/2" |
2/3" |
1" |
Angle |
10 |
0.9 |
1.4 |
1.8 |
2.5 |
3.7 |
120.6 |
35 |
3.2 |
4.8 |
6.4 |
8.8 |
12.8 |
53.2 |
60 |
5.5 |
8.2 |
11.0 |
15.1 |
22 |
32.6 |
85 |
7.7 |
11.6 |
15.6 |
21.3 |
31.1 |
23.3 |
110 |
10.0 |
15.1 |
20.1 |
27.6 |
40.3 |
18.1 |
135 |
12.3 |
18.5 |
24.7 |
33.9 |
49.4 |
14.8 |
160 |
14.6 |
21.9 |
29.3 |
40.2 |
58.6 |
12.5 |
185 |
16.8 |
25.3 |
33.9 |
46.4 |
67.7 |
10.8 |
210 |
19.1 |
28.8 |
38.4 |
52.7 |
76.9 |
9.5 |
235 |
21.4 |
32.2 |
43.0 |
59.0 |
86.0 |
8.5 |
260 |
23.7 |
35.6 |
47.6 |
65.3 |
95.2 |
7.7 |
CCTV focal length
numbers shown converted from a 35mm camera zoom lens.
View Our Lens
Products
If
you have any questions about lens selection call toll free
for
assistance
1-877-476-6607
If you have
any questions please email or call us:
Toll Free Line: 1-877-476-6607
Email: info@skywaysecurity.com
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Call 1-877-476-6607
to view a
Live Demo
Skyway
NetCam
Price
$649.00
Complete
Internet camera package includes NetCam camera/server,
8mm C/CS-mount lens, 50 ft. power/network cable, indoor
wall mount, power supply, Skyway Tools software
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Order
Tracking |
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you received a notice that your order shipped
ups, Click this Link for ups
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Cash
Register Surveillance System
The Cash Register System provides retail
managers and owners with a complete picture of cashier
activity to minimize shrink and increase profits. All
transactions are superimposed onto corresponding video
of the cashier, customer, cash register/POS and products.
The system also enables pinpointing of questionable
activity such as "sweetheart discounts" and flagged
transactions including VOIDs and NO SALEs�reducing the
time spent on reviewing video tapes from hours to minutes.
Questions
- Support
1-877-476-6607
Office Hours
9AM - 5PM EST
e-Mail Info@skywaysecurity.com
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with the permission of the owner. Skyway Security.Com.
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