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All Products / Imaging Lenses / Fixed Focal Length Lenses / UCi Series Fixed Focal Length Lenses
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TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

4mm, f/1.8 UCi Series Fixed Focal Length Lens

4mm UCi Series Fixed Focal Length Lens

4mm UCi Series Fixed Focal Length Lens
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Stock #33-855 Contact Us
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Specifications

General

Type:
Fixed Focal Length Lens
Imaging Lens Type:
High Performance Lens with Compact Form Factor and Fixed Aperture

Physical & Mechanical Properties

Iris Option:
Fixed
Length (mm):
48.30
Maximum Diameter (mm):
40
Outer Diameter (mm):
40
Weight (g):
44
Maximum Rear Protrusion (mm):
0

Optical Properties

Horizontal Field of View, 1/2" Sensor:
23.0mm - 84.8°
Horizontal Field of View, 1/3" Sensor:
15.6mm - 65.4°
Maximum Image Circle (mm):
8.00
Numerical Aperture NA, Object Side:
0.0894
Horizontal Field of View @ Max Sensor Format:
23.0mm - 84.8°
Number of Elements (Groups):
8 (7)
Horizontal Field of View, 1/2.5" Sensor:
20.0mm - 77.8°
Focal Length FL (mm):
4.00
Primary Magnification PMAG:
0.343
Working Distance (mm):
0 - ∞
Aperture (f/#):
f/1.8
Coating:
λ/4 MgF2
Coating Specification:
λ/4 MgF2
Entrance Pupil Position (mm):
12.69
Horizontal Field of View, 1/4" Sensor:
11.2mm - 49.7°
Object Space Principal Plane (mm):
16.04
Image Space Principal Plane (mm):
5.84
Field of View at Max Sensor Format:
Horizontal: 22.8mm - 84.8°
Vertical: 15.6mm - 65.4°
Diagonal: 33.2mm - 101.7°
Maximum Distortion (%):
-20.44
Exit Pupil Position (mm):
-12.68
Lens Wavelength Range:
VIS

Sensor

Optimized Sensor Format:
1/2.5"
Maximum Sensor Format:
1/2"

Threading & Mounting

Filter Thread:
M62 x 0.75 (Male)
Filter Thread Adapter:
#33-308 (Required)
Mount:
M12 x 0.5 (S-Mount)

Environmental & Durability Factors

Storage Temperature (°C):
-20 to +60 For questions regarding operating temperature please contact our support team

Regulatory Compliance

RoHS:
Compliant
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Certificate of Conformance:
View
×

Product Details

  • Up to 1/1.8", C-Mount, S-Mount Lens
  • Up to 12 MegaPixels, 1.85µm Pixel Size Sensors
  • Instrumentation (UCi) versions of our UC Series Lenses with Streamlined Mechanical Designs and Fixed Apertures
  • 4mm to 35mm Focal Length

TECHSPEC® UCi Series Fixed Focal Length Lenses utilize the same optics as the TECHSPEC UC Series Lenses and feature 4K resolution. These lenses are designed for small pixels ≤2.2μm and offer a wide range of fixed apertures for a variety of applications. While optimized for 1/2.5" sensors, many focal length options can be used on sensors up to 1/1.8”. TECHSPEC® UCi Series Fixed Focal Length Lenses are ideal for OEM applications that require small, robust, and lightweight imaging solutions.

Note: For adjustable aperture options, see our TECHSPEC® UC Series Fixed Focal Length Lenses.

Edmund Optics has created a family of high-performance ultra-compact optical designs (the UC Series family) and developed 3 customized optomechanical solutions targeted for specific applications. These lens sub-families utilize the same optics as the UC Series lenses providing the same optical performance in a variety of optomechanical solutions to meet your application requirements:

UC Series: Features locking cam focus and iris adjustment in an ultra-compact design and is the most adjustable version of these optical designs; they are the typical high-quality machine vision lenses.

UCi Series: Simplified mechanics featuring fixed apertures with compact housing. Industrial Ruggedization for reduced size, cost, and locked focus.

UCr Series: All optics glued in place and a locking C-clamp focus ring. Stabilized Ruggedization for reduced pixel shift and improved focus stability.

UCw Series: Waterproof, designed to meet IEC Ingress Protection Code IPX7 to withstand exposure to water up to 1 meter depth for 30 minutes.

Technical Information

#33-855, 4mm, f/1.8 UCi Series Fixed Focal Length Lens, Distortion Plot
#33-855, 4mm, f/1.8 UCi Series Fixed Focal Length Lens, Distortion Plot
#33-855, 4mm, f/1.8 UCi Series Fixed Focal Length Lens, Relative Illumination Plot
#33-855, 4mm, f/1.8 UCi Series Fixed Focal Length Lens, Relative Illumination Plot
#33-855, 4mm, f/1.8 UCi Series Fixed Focal Length Lens, Working Distance versus Field of View Plot
#33-855, 4mm, f/1.8 UCi Series Fixed Focal Length Lens, Working Distance versus Field of View Plot
#33-855, 4mm, f/1.8 UCi Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 75mm Working Distance, f1.8
#33-855, 4mm, f/1.8 UCi Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 75mm Working Distance, f1.8
#33-855, 4mm, f/1.8 UCi Series Fixed Focal Length Lens, Depth of Field Plot, 75mm Working Distance, f1.8
#33-855, 4mm, f/1.8 UCi Series Fixed Focal Length Lens, Depth of Field Plot, 75mm Working Distance, f1.8
#33-855, 4mm, f/1.8 UCi Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 200mm Working Distance, f1.8
#33-855, 4mm, f/1.8 UCi Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 200mm Working Distance, f1.8
#33-855, 4mm, f/1.8 UCi Series Fixed Focal Length Lens, Depth of Field Plot, 200mm Working Distance, f1.8
#33-855, 4mm, f/1.8 UCi Series Fixed Focal Length Lens, Depth of Field Plot, 200mm Working Distance, f1.8

Compatible Cameras