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

25mm f/4.0, HPi Series Fixed Focal Length Lens

25mm HPi Series Lens

Stock #33-824
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Qty 1+
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Focal Length FL (mm):
Maximum Sensor Format:
Aperture (f/#):
Working Distance (mm):
150 - ∞
Optimized Working Distance (mm):
150 - ∞
Maximum Image Circle (mm):
Numerical Aperture NA, Object Side:
Entrance Pupil Position (mm):
Exit Pupil Position (mm):
Object Space Principal Plane (mm):
Image Space Principal Plane (mm):
Primary Magnification PMAG:
Field of View at Max Sensor Format:
Horizontal: 92.6mm - 31.1°
Vertical: 68.8mm - 23.6°
Diagonal: 117.4mm - 38.3°
Horizontal Field of View, 1.1" Sensor:
95.9mm - 31.3°
Horizontal Field of View, 1" Sensor:
86.1mm - 28.4°
Maximum Distortion (%):
Coating Specification:
λ/4 MgF2
Filter Thread:
M34 x 0.50 with required adapter #11-610
Length (mm):
Maximum Diameter (mm):
Maximum Rear Protrusion (mm):
Number of Elements (Groups):
7 (6)
Iris Option:
Fixed Focal Length Lens
Weight (g):

Regulatory Compliance


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Product Family Description

  • 1.1", C-Mount Lens
  • Up to 20 MegaPixels, 1.85µm Pixel Size Sensors
  • Instrumentation (HPi) versions of our HP Series Lenses with Streamlined Mechanical Designs and Fixed Apertures
  • 16mm to 50mm Focal Length

TECHSPEC® HPi Series Fixed Focal Length Lenses offer the same high resolution performance as the TECHSPEC HP Series Lenses with a streamlined design. The simplified mechanical design enables a more compact size with a reduction in cost and weight, making them ideal for OEM volume applications. Featuring a wide range of fixed aperture versions and an adjustable focus, TECHSPEC HPi Series Fixed Focal Length Lenses offer the ideal combination of simplicity and flexibility required for industrial applications. Call for OEM Quantity Pricing.

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

  • HP Series: Features locking cam focus and iris adjustment. This is the most adjustable version of these optical designs and is the typical high quality machine vision lens.
  • HPi Series: Simplified mechanics featuring fixed apertures with compact housing. Industrial Ruggedization for reduced size, cost, and locked focus.
  • HPr Series: Stability ruggedized with all optics glued in place and a locking C-clamp focus ring for reduced pixel shift and improved focus stability.

Technical Information