Name: 25mm, f/2.8 Ci Series Fixed Focal Length Lens
Brand: TECHSPEC
SKU: 85-357
Price: C$427.00

25mm, f/2.8 Ci Series Fixed Focal Length Lens

25mm Focal Length

Stock #85-357 In Stock

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C$427.00

Qty 1-24
C$427.00

Qty 25+
C$385.00

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Iris Option:

Fixed

Length (mm):

29.90

Horizontal Field of View, 1/2" Sensor:

25.4mm - 14.5°

Horizontal Field of View, 2/3" Sensor:

35mm - 19.8°

Filter Thread:

M25.5 x 0.50 (Male)

Filter Thread Adapter:

#89-941 (Required)

Maximum Diameter (mm):

26.5

Weight (g):

Horizontal Field of View, 1/3" Sensor:

19mm - 10.9°

Maximum Rear Protrusion (mm):

1.33

Maximum Image Circle (mm):

11.00

Numerical Aperture NA, Object Side:

0.0384

Horizontal Field of View @ Max Sensor Format:

35mm - 19.8°

Number of Elements (Groups):

7 (6)

Horizontal Field of View, 1/1.8" Sensor:

28.5mm - 16.1°

Front Thread:

M22.0 x 0.75 (Male)

Horizontal Field of View, 1/2.5" Sensor:

22.6mm - 12.9°

Type:

Fixed Focal Length Lens

Diameter (mm):

26.50

Focal Length FL (mm):

25.00

Primary Magnification PMAG:

0.266

Maximum Sensor Format:

2/3"

Working Distance (mm):

100 - ∞

Mount:

C-Mount

Aperture (f/#):

f/2.8

Coating:

425 - 675nm BBAR

Coating Specification:

425 - 675nm BBAR

Entrance Pupil Position (mm):

15.89

Horizontal Field of View, 1/4" Sensor:

14.2mm - 8.2°

Object Space Principal Plane (mm):

18.77

Image Space Principal Plane (mm):

-12.44

Field of View at Max Sensor Format:

Horizontal: 33.3mm - 19.8°
Vertical: 24.9mm - 14.9°
Diagonal: 41.8mm - 24.6°

Maximum Distortion (%):

0.21

Exit Pupil Position (mm):

-15.68

Lens Wavelength Range:

VIS

Storage Temperature (°C):

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

Regulatory Compliance

RoHS 2015:

Compliant

Certificate of Conformance:

View

Reach 235:

Compliant

Product Description

These compact lenses are designed specifically for volume integration into applications such as analytical medical devices, including benchtop-based blood analyzers. For customized f/# versions to best suit your instrumentation application needs and to discuss volume requirements, please contact us.

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.

#85-357, 25mm, f/2.8 Ci Series Fixed Focal Length Lens, Distortion Plot

#85-357, 25mm, f/2.8 Ci Series Fixed Focal Length Lens, Relative Illumination Plot

#85-357, 25mm, f/2.8 Ci Series Fixed Focal Length Lens, Working Distance versus Field of View Plot

#85-357, 25mm, f/2.8 Ci Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 200mm Working Distance, f2.8

#85-357, 25mm, f/2.8 Ci Series Fixed Focal Length Lens, Depth of Field Plot, 200mm Working Distance, f2.8

#85-357, 25mm, f/2.8 Ci Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 500mm Working Distance, f2.8

#85-357, 25mm, f/2.8 Ci Series Fixed Focal Length Lens, Depth of Field Plot, 500mm Working Distance, f2.8

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