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TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

12mm UC Series Fixed Focal Length Lens

12mm FL, #33-303

12mm FL, #33-303

Stock #33-303
Qty 1
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Focal Length FL (mm):
Maximum Sensor Format:
Horizontal Field of View @ Max Sensor Format:
70.3mm - 34.0°
Aperture (f/#):
f/1.8 - f/11
Working Distance (mm):
100 - ∞
λ/4 MgF2
Distortion (%):
<2.5% (on 1/2.5" Sensor)
Horizontal Field of View, 1/1.8" Sensor:
70.3mm - 34.0°
Horizontal Field of View, 1/2" Sensor:
62.2mm - 30.3°
Horizontal Field of View, 1/2.5" Sensor:
56.2mm - 27.5°
Horizontal Field of View, 1/3" Sensor:
46.3mm - 22.8°
Horizontal Field of View, 1/4" Sensor:
34.5mm - 17.1°
Filter Thread:
M25.5 x 0.5 (Female)
Number of Elements (Groups):
7 (6)
Numerical Aperture NA, Object Side:
Optimized Sensor Format:
Outer Diameter (mm):
Iris Option:
Fixed Focal Length Lens
Weight (g):
Maximum Length (mm):

Regulatory Compliance

RoHS 2015:
REACH 201:

Product Family Description

  • Ultra-Compact (UC) Form Factor
  • 4K Resolution Designed for Small Pixels (≤2.2μm)
  • Optimized for 1/2.5" Sensors and Supports up to 1/1.8"

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.

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