Name: 4.5mm, f/2 Ci Series Fixed Focal Length Lens
Brand: TECHSPEC
SKU: 87-551
Price: ₹21,968

4.5mm, f/2 Ci Series Fixed Focal Length Lens

4.5mm Focal Length

Stock #87-551 10 to 12 days

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₹21,968

Qty 1-24
₹21,968

Qty 25+
₹19,793

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Iris Option:

Fixed

Length (mm):

32.14

Horizontal Field of View, 1/2" Sensor:

53.9mm - 69.4°

Filter Thread:

M58 x 0.75 (Male)

Filter Thread Adapter:

#87-425 (Required)

Maximum Diameter (mm):

Weight (g):

Horizontal Field of View, 1/3" Sensor:

44.0mm - 59.2°

Maximum Rear Protrusion (mm):

3.4

Maximum Image Circle (mm):

9.00

Numerical Aperture NA, Object Side:

0.0285

Horizontal Field of View @ Max Sensor Format:

72.0mm - 84.7°

Number of Elements (Groups):

7 (6)

Horizontal Field of View, 1/1.8" Sensor:

72.0mm - 84.7°

Front Thread:

M40.0 x 0.5 (Male)

Type:

Fixed Focal Length Lens

Diameter (mm):

26.50

Focal Length FL (mm):

4.50

Primary Magnification PMAG:

0.117

Maximum Sensor Format:

1/1.8"

Working Distance (mm):

25 - ∞

Mount:

C-Mount

Aperture (f/#):

f/2

Coating:

425 - 675nm BBAR

Coating Specification:

425 - 675nm BBAR

Entrance Pupil Position (mm):

14.4

Horizontal Field of View, 1/4" Sensor:

32.0mm - 45.2°

Object Space Principal Plane (mm):

17.89

Image Space Principal Plane (mm):

6.51

Field of View at Max Sensor Format:

Horizontal: 72mm - 84.8°
Vertical: 50.5mm - 66.1°
Diagonal: 98.2mm - 100.1°

Maximum Distortion (%):

-15.83

Exit Pupil Position (mm):

-9

Lens Wavelength Range:

VIS

Imaging Lens Type:

Compact Lens with Fixed Aperture

Storage Temperature (°C):

-20 to +60 For questions regarding operating temperature please contact our support team

Regulatory Compliance

RoHS:

Compliant

Certificate of Conformance:

View

Product Family Description

Up to 2/3", C-Mount Lens
Up to 7.5 MegaPixels, 2.8µm Pixel Size Sensors
Instrumentation (Ci) Versions of our C Series Lenses with Streamlined Mechanical Designs and Fixed Apertures
3.5mm to 50mm Focal Length
Ruggedized (Cr) Designs Also Available

TECHSPEC® Ci Series Fixed Focal Length Lenses are a streamlined version of our C Series Fixed Focal Length Lenses. They feature the same low lens-to-lens variation and broadband anti-reflection (BBAR) coating for maximum light transmission, while offering reduced weight and size. An adjustable, lockable focus allows for setting and locking the best focus position for instrumentation integration. TECHSPEC® Ci Series Fixed Focal Length Lenses are designed specifically for volume integration into applications such as factory inspection and automation to benchtop biomedical devices. The Ci Series offers a wide range of aperture options, ensuring maximum flexibility of resolution, throughput, and depth of field.

Edmund Optics has created a family of high performance optical designs (the C Series family) and developed 6 customized optomechanical solutions targeted for specific applications. These lens sub-families utilize the same optics as the C Series lenses providing the same optical performance in a variety of optomechanical solutions to meet your application requirements:

C Series: Features locking cam focus and iris adjustment and is the most adjustable version of these optical designs; they are the typical high quality machine vision lenses. Also available with a VIS-NIR Broadband Anti-Reflection (BBAR) Coating.
Ci Series: Simplified mechanics featuring fixed apertures with compact housing. Industrial Ruggedization for reduced size, cost, and locked focus.
Cr Series: All optics glued in place and a locking C-clamp focus ring. Stabilized Ruggedization for reduced pixel shift and improved focus stability.
Cx Series: Modular, flexible mechanics allows lenses to be taken apart for easy integration of accessories such as liquid lenses, apertures, and more.
Liquid Lens Cx Series: Designed with an integrated liquid lens for quick autofocus.
Cw Series: Waterproof, designed to meet IEC Ingress Protection Code IPX7 and IPX9K.

#87-551, 4.5mm, f/2 Ci Series Fixed Focal Length Lens, Distortion Plot

#87-551, 4.5mm, f/2 Ci Series Fixed Focal Length Lens, Relative Illumination Plot

#87-551, 4.5mm, f/2 Ci Series Fixed Focal Length Lens, Working Distance versus Field of View Plot

#87-551, 4.5mm, f/2 Ci Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 200mm Working Distance, f2

#87-551, 4.5mm, f/2 Ci Series Fixed Focal Length Lens, Depth of Field Plot, 200mm Working Distance, f2

#87-551, 4.5mm, f/2 Ci Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 500mm Working Distance, f2

#87-551, 4.5mm, f/2 Ci Series Fixed Focal Length Lens, Depth of Field Plot, 500mm Working Distance, f2

Technical Information

Dimensions
Focal Length	A	B	C	D
6mm	M34.0 x 0.5	47.8mm	34mm	1.17mm
12mm	M22.0 x 0.75	29.0mm	22mm	0.96mm
16mm	M22.0 x 0.75	40.8mm	22mm	1.09mm
25mm	M22.0 x 0.75	29.9mm	22mm	1.33mm
35mm	M25.5 x 0.5	41mm	22.5mm	3.82mm
50mm	M30.5 x 0.5	49.5mm	30.5mm	2.06mm