Mitutoyo Infinity Corrected Long Working Distance Objectives
Mitutoyo Objectives
• Long Working Distances, Bright Field Inspection
• High Quality Plan Apochromat Design
• Flat Image Surface over Entire Field of View
Mitutoyo’s 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by using a new approach and avoiding outdated conventions used by competitors. In order to maintain as
high an NA and contrast as possible, the lenses are all Plan Apochromats. An apochromatic objective lens
is chromatic aberration corrected for red, blue, and yellow. Optimized for bright field illumination (incident
illumination parallel to optical axis), these lenses are ideal for in-line illumination applications. For an infinity
correction system, a tube lens is required. M Plan APO HR series objectives offer increased resolving power.
All stated magnifications are based on a tube lens focal length of 200mm.
Compatible with MT-1, MT-2, and MT-4 Tube Lenses. For complete specifications, see page 137
M26 x 0.706 (36 TPI)
Max. Dia. F
WD
D C E
B
95
(Parfocal Distance)
5
A
M Plan Apo Series
Units: mm
M Plan Apo
1X
Transmission (%)
100
M Plan Apo
2X
Typical Transmission for M Plan Apo
400 500 600 700 800 900 1000 1100
M Plan Apo
5X
Wavelength (nm)
M Plan Apo
7.5X
M Plan Apo
10X
M Plan Apo A B C D E F W.D.
1X 84.0 – 38.0 – 41.0 34.0 11.0
2X 61.0 1.4 27.5 24.7 32.2 34.0 34.0
5X 61.0 1.6 25.0 23.0 32.2 34.0 34.0
7.5X 60.0 – 25.0 24.0 32.2 34.0 35.0
10X 61.0 2.0 28.2 – 32.2 34.0 34.0
20X 75.0 1.5 29.2 – 32.2 34.0 20.0
50X 82.0 1.5 29.2 – 32.2 34.0 13.0
100X 89.0 4.7 29.2 17.8 32.2 34.0 6.0
M Plan Apo HR A B C D E F W.D.
5X 69.5 3.7 24.8 – 32.2 34.0 25.5
10X 80.0 7.5 29.0 26.0 37.0 39.0 15.0
50X 89.8 2.0 28.2 – 32.2 34.0 5.2
100X 93.7 2.0 28.2 – 32.2 34.0 1.3
M Plan Apo SL A B C D E F W.D.
20X 64.5 1.5 24.8 24.0 32.2 34.0 30.5
50X 74.5 3.9 25.2 23.5 32.2 34.0 20.5
100X 82.0 1.4 23.9 22.0 32.2 34.0 13.0
M Plan Apo
20X
80
60
40
20
0
Numerical Aperture, NA: 0.025 0.055 0.14 0.21 0.28 0.42 0.55 0.70
Working Dist., WD (mm): 11.0 34.0 34.0 35.0 34.0 20.0 13.0 6.0
Focal Length (mm): 200.0 100.0 40.0 26.67 20.0 10.0 4.0 2.0
Resolving Power (μm): 11.0 5.0 2.0 1.3 1.0 0.7 0.5 0.4
Depth of Focus (μm): 440.0 91.0 14.0 6.2 3.5 1.6 0.9 0.6
Field of View (mm):
⅔" Sensor (H x V): 8.8 x 6.6 4.4 x 3.3 1.8 x 1.32 1.17 x 0.88 0.88 x 0.66 0.44 x 0.33 0.18 x 0.13 0.09 x 0.07
½" Sensor (H x V): 6.4 x 4.8 3.2 x 2.4 1.28 x 0.96 0.85 x 0.64 0.64 x 0.48 0.32 x 0.24 0.13 x 0.10 0.06 x 0.05
Weight (g): 300 220 230 240 240 270 290 320
Stock No. #58-235 #46-142 #46-143 #66-383 #46-144 #46-145 #46-146 #46-147
Price £2,124.15 £811.75 £612.00 £1,185.75 £765.00 £1,780.75 £2,320.50 £3,030.25
M Plan Apo HR Series M Plan Apo SL Series
M Plan Apo
• Increased Resolving Power and Numerical Aperture
• Ideal for Brightfield Observation
• Apochromat Design with Flat Image Across Entire Field of View
M Plan Apo HR Series M Plan Apo SL Series
50X
M Plan Apo
100X
www.edmundoptics.co.uk/imaging 135
objectives resource guide telecentric liquid lens / specialty cameras illumination targets
fixed focal length filters/accessories microscopy /
• Super-Long Working Distance for Bright Field Inspection
• High Quality Apochromat Design
• Flat Image Surface Over Entire Field of View
M Plan Apo HR
5X
M Plan Apo HR
10X
M Plan Apo HR
50X
M Plan Apo HR
100X
M Plan
Apo SL 20X
M Plan
Apo SL 50X
M Plan
Apo SL 100X
Numerical Aperture, NA: 0.21 0.42 0.75 0.90 0.28 0.42 0.55
Working Dist., WD (mm): 25.5 15.0 5.2 1.3 30.5 20.5 13.0
Focal Length (mm): 40.0 20.0 4.0 2.0 10 4 2
Resolution Power (μm): 1.3 0.6 0.3 0.3 1.0 0.7 0.5
Depth of Focus (μm): 6.2 1.55 0.5 0.3 3.5 1.6 0.9
Field of View: (mm):
⅔" Sensor (H x V): 1.80 x 1.32 0.88 x 0.66 0.18 x 0.13 0.09 x 0.07 0.44 x 0.33 0.18 x 0.13 0.09 x 0.07
½" Sensor (H x V): 1.28 x 0.96 0.64 x 0.48 0.13 x 0.10 0.06 x 0.05 0.32 x 0.24 0.13 x 0.10 0.06 x 0.05
Weight (g): 285 460 400 410 240 280 290
Stock No. #34-247 #58-236 #58-237 #58-238 #46-398 #46-399 #46-401
Price £4,118.25 £7,046.50 £4,964.00 £5,355.00 £2,681.75 £2,970.75 £4,156.50
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