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

100mm Focal Length, LF Series Fixed Focal Length Lens

100mm Focal Length, #85-204

Stock #85-204
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Focal Length FL (mm):
Maximum Sensor Format:
Aperture (f/#):
f/2.8 - f/22
Working Distance (mm):
500 - ∞
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: 158.2mm - 19.7°
Vertical: 118.6mm - 14.8°
Diagonal: 198.1mm - 24.5°
Horizontal Field of View, 35mm Sensor:
164.5mm - 20.3°
Horizontal Field of View, APS-H Sensor:
133.3mm - 16.6°
Horizontal Field of View, APS-C Sensor:
102.2mm - 12.7°
Horizontal Field of View, 4/3" Sensor:
102.2mm - 12.7°
Horizontal Field of View, 1.1" Sensor:
64.8mm - 8.1°
Horizontal Field of View, 1" Sensor:
58.4mm - 7.3°
Horizontal Field of View, 2/3" Sensor:
40.1mm - 5.0°
Horizontal Field of View, 1/1.8" Sensor:
32.8mm - 4.1°
Horizontal Field of View, 1/2" Sensor:
29.2mm - 3.7°
Horizontal Field of View, 1/2.5" Sensor:
26.4mm - 3.3°
Horizontal Field of View, 1/3" Sensor:
21.9mm - 2.7°
Horizontal Field of View, 1/4" Sensor:
16.4mm - 2.1°
Maximum Distortion (%):
Coating Specification:
λ/4 MgF2
Filter Thread:
M46 x 0.75 (Female)
Length (mm):
Maximum Diameter (mm):
Maximum Rear Protrusion (mm):
Number of Elements (Groups):
8 (5)
Iris Option:
Fixed Focal Length Lens
Weight (g):

Regulatory Compliance


Product Family Description

  • Full Frame (35mm), F-Mount Lens
  • 29 MegaPixels, 5µm Pixel Size Sensors
  • F-Mount Large Format (LF) Lens for Factory Automation
  • 28mm to 100mm Focal Length

TECHSPEC® LF Series Fixed Focal Length Lenses are designed for use with 2k, 4k, 6k, and 8k line scan cameras and mid-sized area scan arrays. Optimized for machine vision working distances, LF Series lenses feature high resolving powers to easily detect small defects. Additionally, these lenses also feature a lockable focus and iris, which is ideal for factory automation applications where vibrations can cause performance decreases. TECHSPEC® LF Series Fixed Focal Length Lenses are ideal for use in machine vision, web inspection, sorting, and identification applications.

Note: 28mm focal length does not work on all F-mount cameras. Camera F-mount must have an inner diameter greater than 42mm.