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All Products / Microscopy / Infinity Corrected Objectives / Mitutoyo Infinity Corrected Long Working Distance Objectives
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10X Mitutoyo Plan Apo HR Infinity Corrected Objective

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20X Mitutoyo Plan Apo SL Infinity Corrected Objective, #46-398 50X Mitutoyo Plan Apo Infinity Corrected Long WD Objective, #46-146 7.5X Mitutoyo Plan Apo Infinity Corrected Long WD Objective, #66-383 +10
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Stock #58-236 In Stock
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C$12,586.00
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Compatible Cover Glass Thickness (mm):
N/A
Horizontal Field of View, 1/2" Sensor:
0.64mm
Horizontal Field of View, 2/3" Sensor:
0.88mm
Focal Length FL (mm):
20.00
Model Number:
378-788-15
Length excluding Threads (mm):
80.00
Magnification:
10X
Maximum Diameter (mm):
34
Maximum Sensor Format:
2/3"
Numerical Aperture NA:
0.42
Mounting Threads:
M26 x 36 TPI
Compatible Tube Lens Focal Length (mm):
Focal Length: 200mm
Type:
Microscope Objective
Resolving Power (μm):
0.6
Depth of Field (μm):
1.55
Field of View, 24 Diameter Field Eyepiece (mm):
2.4
Field of View, 18 Diameter Field Eyepiece (mm):
1.8
Operating Temperature (°C):
+5 to +40
Operating Humidity:
20 - 80%
Working Distance (mm):
15.0
Weight (g):
460.00
Wavelength Range (nm):
435 - 655
Style:
Infinity Corrected
Manufacturer:
Mitutoyo
Parfocal Length (mm):
95
Immersion Liquid:
N/A
Exit Pupil Diameter (mm):
16.80

Regulatory Compliance

RoHS 2015:
Exempt
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Certificate of Conformance:
View
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REACH 241:
Contains SVHC(s)
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Product Family Description

  • Long Working Distances
  • Bright Field Inspection
  • High Quality Plan Apochromat Design
  • Flat Image Surface over Entire Field of View

Mitutoyo Infinity Corrected Long Working Distance Objectives are world-renowned for setting the standard of excellence for long working distance microscope optics. They have achieved the best combination of working distance and optical performance by using a new approach—avoiding outdated conventions used by competitors. Making the objectives larger and longer has made the designs easier (95mm parfocalization length). The lenses are all Plano Apochromats to maintain as high an N.A. and contrast as possible. An apochromatic objective lens is chromatic aberration corrected for red, blue, and yellow, while a standard achromatic objective lens is only corrected for red and blue. Plano Apochromats are typically very expensive, but high-volume production has made it possible to keep the cost down comparative to standard Achromat long working distance objectives. Mitutoyo Infinity Corrected Long Working Distance Objectives are optimized for bright field illumination (incident illumination parallel to the optical axis) and are ideal for in-line illumination applications. A secondary (or tube) lens is required for an infinity correction system. All stated magnifications are based on a tube lens focal length of 200mm. Mounting thread: M26 x 0.706 pitch (36 TPI). 

M Plan Apo SL Series

  • Super-Long Working Distance for Bright Field Inspection
  • 13mm Working Distance for 100X and 200X Models
  • High Quality Apochromat Design
  • Flat Image Surface over Entire Field of View
  • Good Color Reproducibility

Accessory Tube Lenses

Accessory Tube Lenses and C-Mount Thread Adapters can be used to adapt the Mitutoyo objectives to additional configurations.

Edmund Optics is the main source for Mitutoyo Objectives. Place your orders now for these in demand quality products.

Technical Information

Dimensions (mm)
Stock No. M Plan Apo A B C D E F W.D.
#58-235 1X 84.0 - 38.0 - 41.0 34.0 11.0
#46-142 2X 61.0 1.4 27.5 24.7 32.2 34.0 34.0
#46-143 5X 61.0 1.6 25.0 23.0 32.2 34.0 34.0
#66-383 7.5X 60.0 - 25.0 24.0 32.2 34.0 35.0
#46-144 10X 61.0 2.0 28.2 - 32.2 34.0 34.0
#46-145 20X 75.0 1.5 29.2 - 32.2 34.0 20.0
#46-146 50X 82.0 1.5 29.2 - 32.2 34.0 13.0
#46-147 100X 89.0 4.7 29.2 17.8 32.2 34.0 6.0
Stock No.
 M Plan Apo HR A B C D E F W.D.
#34-247 5X HR 69.5 3.7 24.8 - 32.2 34.0 25.5
#58-236 10X HR 80.0 7.5 29.0 26.0 37.0 39.0 15.0
#58-237 50X HR 89.8 2.0 28.2 - 32.2 34.0 5.2
#58-238 100X HR 93.7 2.0 28.2 - 32.2 34.0 1.3
Stock No.
 M Plan APO SL A B C D E F W.D.
#46-398 20X SL 64.5 1.5 24.8 24.0 32.2 34.0 30.5
#46-399 50X SL 74.5 3.9 25.2 23.5 32.2 34.0 20.5
#46-401 100X SL 82.0 1.4 23.9 22.0 32.2 34.0 13.0