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All Products / Imaging Lenses / Fixed Focal Length Lenses / UC 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

25mm UC Series Fixed Focal Length Lens

25mm FL, #33-305

25mm FL, #33-305
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Stock #33-305 3-5 days
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Iris Option:
Variable
Length (mm):
31.28
Horizontal Field of View, 1/2" Sensor:
54.0mm - 14.6°
Filter Thread:
M25.5 x 0.50 (Female)
Maximum Diameter (mm):
30
Outer Diameter (mm):
30.00
Weight (g):
48
Horizontal Field of View, 1/3" Sensor:
40.4mm - 11.0°
Maximum Rear Protrusion (mm):
4
Maximum Image Circle (mm):
9.00
Numerical Aperture NA, Object Side:
0.0306
Horizontal Field of View @ Max Sensor Format:
60.8mm - 16.4°
Number of Elements (Groups):
7 (5)
Horizontal Field of View, 1/1.8" Sensor:
60.8mm - 16.4°
Mounting Diameter (mm):
30.0
Horizontal Field of View, 1/2.5" Sensor:
48.9mm - 13.2°
Optimized Sensor Format:
1/2.5"
Type:
Fixed Focal Length Lens
Focal Length FL (mm):
25.00
Primary Magnification PMAG:
0.119
Maximum Sensor Format:
1/1.8"
Working Distance (mm):
200 - ∞
Mount:
C-Mount
Aperture (f/#):
f/1.85 - f/16
Coating:
λ/4 MgF2
Coating Specification:
λ/4 MgF2
Entrance Pupil Position (mm):
15.05
Horizontal Field of View, 1/4" Sensor:
30.3mm - 8.2°
Object Space Principal Plane (mm):
29.11
Image Space Principal Plane (mm):
-12.34
Field of View at Max Sensor Format:
Horizontal: 60.8mm - 16.4°
Vertical: 45.5mm - 12.3°
Diagonal: 76.3mm - 20.4°
Maximum Distortion (%):
-0.15
Maximum Length (mm):
31.28
Exit Pupil Position (mm):
-44.48
Lens Wavelength Range:
VIS
Imaging Lens Type:
High Performance Lens with Compact Form Factor
Storage Temperature (°C):
-20 to +60 For questions regarding operating temperature please contact our support team

Regulatory Compliance

RoHS 2015:
Compliant
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Certificate of Conformance:
View
×
REACH 241:
Compliant
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Product Family Description

  • Up to 1/1.8", C-Mount Lens
  • Up to 12 MegaPixels, 1.85µm Pixel Size Sensors
  • Ultra-Compact (UC), High Resolution Lens for Small Sensors
  • 4mm to 35mm Focal Length

Our ultra-compact, TECHSPEC® UC Series Fixed Focal Length Lenses are designed to optimize performance, cost, and size without sacrificing quality or feel. Designed for pixels that are ≤2.2μm, these lenses provide high levels of resolution (>200 lp/mm) across the sensor and are compatible with all standard C-Mount cameras. TECHSPEC® UC Series Fixed Focal Length Lenses feature focus and iris adjustments, as well as recessed set screws, and are manufactured for use at typical machine vision working distances. While they are optimized for 1/2.5" sensors, many focal lengths will work on sensors up to 1/1.8". The TECHSPEC® UC Series Fixed Focal Length Lenses are an outstanding option for use on all smaller format camera sensors, along with both short and long working distance applications, making them ideal for inspection, factory automation, biomedical devices, and a broad range of other applications.

Note: For fixed aperture instrumentation versions, see our TECHSPEC® UCi Series Fixed Focal Length Lenses.

#33-305, 25mm UC Series Fixed Focal Length Lens, Distortion Plot
#33-305, 25mm UC Series Fixed Focal Length Lens, Distortion Plot
#33-305, 25mm UC Series Fixed Focal Length Lens, Relative Illumination Plot
#33-305, 25mm UC Series Fixed Focal Length Lens, Relative Illumination Plot
#33-305, 25mm UC Series Fixed Focal Length Lens, Working Distance versus Field of View Plot
#33-305, 25mm UC Series Fixed Focal Length Lens, Working Distance versus Field of View Plot
#33-305, 25mm UC Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 200mm Working Distance, f2.8
#33-305, 25mm UC Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 200mm Working Distance, f2.8
#33-305, 25mm UC Series Fixed Focal Length Lens, Depth of Field Plot, 200mm Working Distance, f2.8
#33-305, 25mm UC Series Fixed Focal Length Lens, Depth of Field Plot, 200mm Working Distance, f2.8
#33-305, 25mm UC Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 200mm Working Distance, f4
#33-305, 25mm UC Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 200mm Working Distance, f4
#33-305, 25mm UC Series Fixed Focal Length Lens, Depth of Field Plot, 200mm Working Distance, f4
#33-305, 25mm UC Series Fixed Focal Length Lens, Depth of Field Plot, 200mm Working Distance, f4
#33-305, 25mm UC Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 350mm Working Distance, f2.8
#33-305, 25mm UC Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 350mm Working Distance, f2.8
#33-305, 25mm UC Series Fixed Focal Length Lens, Depth of Field Plot, 350mm Working Distance, f2.8
#33-305, 25mm UC Series Fixed Focal Length Lens, Depth of Field Plot, 350mm Working Distance, f2.8
#33-305, 25mm UC Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 350mm Working Distance, f4
#33-305, 25mm UC Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 350mm Working Distance, f4
#33-305, 25mm UC Series Fixed Focal Length Lens, Depth of Field Plot, 350mm Working Distance, f4
#33-305, 25mm UC Series Fixed Focal Length Lens, Depth of Field Plot, 350mm Working Distance, f4

Technical Information

 Dimensions

Focal Length

(mm)

 A (mm) B (mm) C (mm) D (mm) Filter Thread
4 40 40.6 30 2.8 M62.0 x 0.75 with required filter adapter #33-308
6 36 40.9 30 3.2 M34.0 x 0.5
8 30 40.61 30 5.15 M34.0 x 0.5
12 30 35.2 30 2.7 M25.5 x 0.5
16 30 29.13 30 3.38 M25.5 x 0.5
25 30 31.28 30 4.0 M25.5 x 0.5
35 30 52.76 30 4.58 M25.5 x 0.5