Bosch LTC 3314-21 Specsheet

Video | Fixed Focal-length Lenses

Fixed Focal-length Lenses

www.boschsecurity.com

u High quality optics

u DC-iris types (direct drive)

u Reliable, robust DC-iris mechanism

As CCTV cameras becomes more reliable and
maintenance-free through the use of solid-state
charge-coupled device (CCD) technology, the lenses
also need to have the same high standards of quality
and reliability.
The range of Fixed Focal-length Lenses meets these
tough requirements by providing long and reliable
operation with no maintenance. Comprising DC-IRIS
and video-iris types, the lens range from wide-angle to
telephoto to cover virtually all applications in CCTV
observation systems.

Functions

Designed for easy installation onto a wide variety of
CCTV cameras, they are available for cameras with
1/3-in. and 1/2-in. image sensor formats. The extent of
the range of lenses means that an installer will always
be able to select the most appropriate lens for both
camera and application.
DC-iris and video-iris lenses include manual focus
adjustment types and can be used in applications with
widely varying lighting conditions. These lenses are
available with a standard 4-pin connector.

u 1/3-inch and 1/2-inch formats

u Standard CS-mounts

Installation/configuration notes

Choosing the correct lens

There is a simple relationship between the required
field of view and the focal length of the lens to be
used (see Field of View figure).
To determine this:

• Estimate or measure the maximum width “W” of the
field of view.

• Estimate or measure the distance “D” between the
camera and the object to be viewed.

• For 1/3 in. lens, use Graph 1 and for 1/2 in. lens use
Graph 2. Find the point on the graph for the lens and
the sensor format corresponding to the “W” and “D”
co-ordinates. To ensure complete coverage of the
object, select the lens indicated by the line above this
object. Normally, for optimum coverage of the field of
view, 1/3 in. and 1/2 in. lens are used with camera
heads with 1/3 in. and 1/2 in. format sensors
respectively. However, 1/2 in. lens may be used with
1/3 in. cameras but the outer areas of the field of
view of the lens will not be seen by the sensor.

1

2

3

4

0 10 20 30 40 50 60 70 80 90 100

100

90

80

70

60

50

40

30

20

10

0

2.8 mm

4.0 mm

6.0 mm

8.0 mm

12.0 mm

3.7 mm

1

2

0 10 20 30 40 50 60 70 80 90 100

100

90

80

70

60

50

40

30

20

10

0

6.0 mm

12 mm

3.7 mm

1

2

36.3

1.4 3

5.6
.22

33.9

1.3 3

36.8

1.4 5

43.5

1.71

43.5

1.71

36.8

1.4 5

5.6
.22

33.8

1.3 3

34

1.3 4

2 | Fixed Focal-length Lenses

4-pin DC-iris Connector (Front view)

Pin 1: Damping coil –

Pin 2: Damping coil +

Pin 3: Driving coil + (open)

Pin 4: Driving coil -

Graph 2 – Field of view (1/2-inch cameras)

1 Object width (m)

2 Object distance (m)

Field of view

Graph 1 – Field of view (1/3-inch cameras)

1 Object width (m)

2 Object distance (m)

Dimensions LTC 3314/21 LTC 3334/21 & LTC 3344/21
In mm (inch)

Dimensions LTC 3214/20, LTC 3234/20 & LTC
3244/20
In mm (inch)

Ordering information

LTC 3314/21 Fixed Focal-length Lens

1/3-inch, 2.8 mm, direct drive, CS-mount F1.2-100, 4­pin

Order number LTC3314/21

LTC 3334/21 Fixed Focal-length Lens

1/3-inch, 4 mm, direct drive, CS-mount F1.2-100, 4-pin

Order number LTC3334/21

3 | Fixed Focal-length Lenses

LTC 3344/21 Fixed Focal-length Lens

1/3-inch, 8 mm, direct drive, CS-mount F1.2-100, 4-pin

Order number LTC3344/21

LTC 3214/20 Fixed Focal-length Lens

1/2-inch, 3.7 mm, direct drive, CS-mount F1.6-300, 4­pin

Order number LTC3214/20

LTC 3234/20 Fixed Focal-length Lens

1/2-inch, 6 mm, direct drive, CS-mount F1.4-300, 4-pin

Order number LTC3234/20

LTC 3244/20 Fixed Focal-length Lens

1/2-inch, 12 mm, direct drive, CS-mount F1.4-300, 4­pin

Order number LTC3244/20

Accessories

S1374 Adapter

converts C mount lens to CS mount camera

Order number S1374

| Fixed Focal-length Lenses

Represented by:

Americas: Europe, Middle East, Africa: Asia-Pacific: China: America Latina:

Bosch Security Systems, Inc.
130 Perinton Parkway
Fairport, New York, 14450, USA
Phone: [phone]
Fax: [phone]
[e-mail]
www.boschsecurity.us

Bosch Security Systems B.V.
P.O. Box 80002
5617 BA Eindhoven, The Netherlands
Phone: + 31 40 2577 284
Fax: [phone]
[e-mail]
www.boschsecurity.com

Robert Bosch (SEA) Pte Ltd, Security
Systems
11 Bishan Street 21
Singapore 573943
Phone: [phone]
Fax: [phone]
[e-mail]
www.boschsecurity.asia

Bosch (Shanghai) Security Systems Ltd.
201 Building, No. 333 Fuquan Road
North IBP
Changning District, Shanghai
200335 China
Phone [phone]
Fax: [phone]
www.boschsecurity.com.cn

Robert Bosch Ltda Security Systems Division
Via Anhanguera, Km 98
CEP 13065-900
Campinas, Sao Paulo, Brazil
Phone: [phone]
Fax: [phone]
[e-mail]
www.boschsecurity.com

© Bosch Security Systems 2013 | Data subject to change without notice
2187242379 | en, V1, 04. Oct 2013

4

Fixed Focal-length Lenses

LTC 3314/21 Fixed Focal-

length Lens

LTC 3334/21 Fixed Focal­length Lens

LTC 3344/21 Fixed Focal­length Lens

LTC 3214/20 Fixed Focal­length Lens

Image format 1/3 inch 1/3 inch 1/3 inch 1/2 inch

Focal length 2.8 mm 4 mm 8 mm 3.7 mm

Iris range F1.2 - 200 F1.2 - 200 F1.2 - 200 F1.6 - 300

Min. Object Distance 0.3 m (1 ft) 0.3 m (1 ft) 0.3 m (1 ft) 0.2 m (0.65 ft)

Weight 52 g (1.15 lb) 49 g (.108 lb) 44 g (.097 lb) 57 g (.12 lb)

Lens mount CS-mount CS-mount CS-mount CS-mount

Angle of view (1/2 in.) N/A N/A N/A 95 X 73

Angle of view (1/3 in.) 94 X 72 64 X 49 33 X 25 73 X 54

Focus control manual manual manual manual

4-pin conn. DC-IRIS DC-IRIS DC-IRIS DC-IRIS

LTC 3234/20 Fixed Focal-

length Lens

LTC 3244/20 Fixed Focal­length Lens

Image format 1/2 inch 1/2 inch

Focal length 6 mm 12 mm

Iris range F1.4 - 300 F1.4 - 300

Min. Object Distance 0.2 m (0.65 ft) 0.3 m (1 ft)

Weight 60 g (.13 lb) 46 g ( .1 lb)

Lens mount CS-mount CS-mount

Angle of view (1/2 in.) 58 X 45 30 X 23

Angle of view (1/3 in.) 45 X 34 23 X 17

Focus control manual manual

4-pin conn. DC-IRIS DC-IRIS