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

50mm Focal Length, LF Series Fixed Focal Length Lens

50mm Focal Length, #85-203

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Stock #85-203 3-5 days
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Iris Option:
Variable
Length (mm):
43.00
Horizontal Field of View, 1/2" Sensor:
63.6mm - 7.3°
Horizontal Field of View, 2/3" Sensor:
87.5mm - 10.1°
Filter Thread:
M43 x 0.75 (Female)
Maximum Diameter (mm):
56
Weight (g):
223
Horizontal Field of View, 1/3" Sensor:
47.7mm - 5.5°
Maximum Rear Protrusion (mm):
10.6
Horizontal Field of View, 1" Sensor:
127.4mm - 14.6°
Maximum Image Circle (mm):
43.30
Numerical Aperture NA, Object Side:
0.0238
Horizontal Field of View @ Max Sensor Format:
362.7mm - 39.9°
Horizontal Field of View, 35mm Sensor:
362.7mm - 39.9°
Horizontal Field of View, 4/3" Sensor:
223.8mm - 25.3°
Horizontal Field of View, 1.1" Sensor:
141.4mm - 16.2°
Number of Elements (Groups):
7 (5)
Horizontal Field of View, 1/1.8" Sensor:
71.6mm - 8.2°
Horizontal Field of View, 1/2.5" Sensor:
57.6mm - 6.6°
Type:
Fixed Focal Length Lens
Focal Length FL (mm):
50.00
Primary Magnification PMAG:
0.101
Maximum Sensor Format:
35mm
Working Distance (mm):
500 - ∞
Mount:
F-Mount
Aperture (f/#):
f/2 - f/22
Coating:
λ/4 MgF2
Coating Specification:
λ/4 MgF2
Entrance Pupil Position (mm):
21.93
Horizontal Field of View, 1/4" Sensor:
35.8mm - 4.1°
Object Space Principal Plane (mm):
43.06
Image Space Principal Plane (mm):
-12.94
Field of View at Max Sensor Format:
Horizontal: 348.7mm - 38.5°
Vertical: 260.1mm - 29.3°
Diagonal: 438.7mm - 47.2°
Maximum Distortion (%):
-0.84
Horizontal Field of View, APS-H Sensor:
292.9mm - 32.7°
Horizontal Field of View, APS-C Sensor:
223.8mm - 25.3°
Exit Pupil Position (mm):
-49.53
Lens Wavelength Range:
VIS
Imaging Lens Type:
Lens for Large Format Sensors
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:
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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. The lenses come in focal lengths ranging from 28 to 100mm. 

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

#85-203, 50mm Focal Length, LF Series Fixed Focal Length Lens, Distortion Plot
#85-203, 50mm Focal Length, LF Series Fixed Focal Length Lens, Distortion Plot
#85-203, 50mm Focal Length, LF Series Fixed Focal Length Lens, Relative Illumination Plot
#85-203, 50mm Focal Length, LF Series Fixed Focal Length Lens, Relative Illumination Plot
#85-203, 50mm Focal Length, LF Series Fixed Focal Length Lens, Working Distance versus Field of View Plot
#85-203, 50mm Focal Length, LF Series Fixed Focal Length Lens, Working Distance versus Field of View Plot
#85-203, 50mm Focal Length, LF Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 1000mm Working Distance, f2.8
#85-203, 50mm Focal Length, LF Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 1000mm Working Distance, f2.8
#85-203, 50mm Focal Length, LF Series Fixed Focal Length Lens, Depth of Field Plot, 1000mm Working Distance, f2.8
#85-203, 50mm Focal Length, LF Series Fixed Focal Length Lens, Depth of Field Plot, 1000mm Working Distance, f2.8
#85-203, 50mm Focal Length, LF Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 1000mm Working Distance, f4
#85-203, 50mm Focal Length, LF Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 1000mm Working Distance, f4
#85-203, 50mm Focal Length, LF Series Fixed Focal Length Lens, Depth of Field Plot, 1000mm Working Distance, f4
#85-203, 50mm Focal Length, LF Series Fixed Focal Length Lens, Depth of Field Plot, 1000mm Working Distance, f4
#85-203, 50mm Focal Length, LF Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 1500mm Working Distance, f2.8
#85-203, 50mm Focal Length, LF Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 1500mm Working Distance, f2.8
#85-203, 50mm Focal Length, LF Series Fixed Focal Length Lens, Depth of Field Plot, 1500mm Working Distance, f2.8
#85-203, 50mm Focal Length, LF Series Fixed Focal Length Lens, Depth of Field Plot, 1500mm Working Distance, f2.8
#85-203, 50mm Focal Length, LF Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 1500mm Working Distance, f4
#85-203, 50mm Focal Length, LF Series Fixed Focal Length Lens, Modulated Transfer Function (MTF) Plot, 1500mm Working Distance, f4
#85-203, 50mm Focal Length, LF Series Fixed Focal Length Lens, Depth of Field Plot, 1500mm Working Distance, f4
#85-203, 50mm Focal Length, LF Series Fixed Focal Length Lens, Depth of Field Plot, 1500mm Working Distance, f4