MA938 Info:
Strain free Plan 40X objective ∞/ 0.17, N.A. 0.65, F.L. 4.5mm, W.D. 0.72mm
The MA938 (Central Stop-Eclipsing Dot Pattern Internal Design) Infinity corrected Strain Free Plan 40X Transmitted light Polarizing Upright Microscope Objective is made to the highest Japanese quality and optical standards, utilizing an Infinity Tube Lens Design F=200mm. Designed to meet the most advanced Polarizing and Geological imaging requirements. This objective represents the culmination of Meiji Techno’s Optical Japanese technology. This objective offers increased brightness and the highest possible N.A. in its class for maximum light gathering ability. Designed to correct lateral and axial chromatic aberrations over the entire field of view. This objective produce images that are flat, crisp and clear with high contrast and optical resolution. This objective works with a wide array of petrographic applications. The stated magnification is based on a Tube lens of 200 mm. DIN Standard mounting threads is 0.7965” (20.1MM) Diameter threads, 36 TPI (Threads per inch), 55° Whitworth. This objective is compatible with all Infinity Corrected Optical System.
The MA938 (Central Stop-Eclipsing Dot Pattern Internal Design) Strain free Plan 40X Infinity Corrected Optical System (I.C.O.S.) upright compound polarizing objective lens is also an option in our MT9000, MT9400, MT9500 and MT9900 Polarizing Upright Series
Type
|
Strain Free for Transmitted Light (Polarizing)
|
Optical
|
Infinity Corrected ∞ Tube Lens
|
Tube Length
|
F=200mm
|
Magnification
|
40X
|
Numerical Aperture (N.A.)
|
0.65
|
Focal Length (F.L.)
|
4.5mm
|
Working Distance (W.D.)
|
0.50mm
|
Parfocal Distance
|
45mm
|
Cover Slip Correction
|
0.17mm
|
Diameter Threads
|
0.7965" (20.1mm) DIN Standard
|
TPI
|
36
|
Whitworth
|
55°
|
Diameter (mm)
|
-mm
|
Length (mm)
|
-mm
|
Weight (g)
|
70g
|
Oil
|
?
|
IS9001
|
?
|
Product Information:
• Manufactured: 100% MADE IN JAPAN
• Warranty: LIMITED LIFETIME WARRANTY
• Customer Support: 1-(800) 832-0060 (U.S.A Based)
Package Information:
• Weight: Less than 1lb
• Box Size: 8" x 8" x 4"
The Brightfield Objective features include:
• 100% MADE IN JAPAN
• High Quality Strain free Plan Design
• Flat image correction over entire field of view ( F.O.V.)
• Brightfield Inspection
• Computer-Aided-Design (CAD) objective
• Infinity Corrected Tube Lens Design, F=200mm
• DIN Standard mounting thread is 0.7965”(20.1MM) diameter threads
• 36 TPI (Threads per inch), 55° Whitworth
• High quality optics designed by Meiji Techno Optical Engineers
• Objectives composed of Numerous internal glass elements
• Corrected for flatness of field
• Uniform Quality and Glass formulations
• Corrected for most common optical artifacts such as coma, astigmatism, geometrical abberation
• Corrected for field curvature and spherical and chromatic aberration
• Corrected for more aberrations over wider fields, but image flare has been dramatically reduced
• Substantial increase in light transmission, yielding crisp and remarkably bright sharp images
Strain free Plan Polarizing Objective Series
OBJECTIVE | MA935 | MA936 | MA936D | MA936DC | MA937 | MA937D | MA938 | MA938D | MA939 | MA940 (oil) |
Type | Infinity Corrected Strain Free Plan | |||||||||
Magnification | 4X | 10X | 10X | 10X | 20X | 20X | 40X | 40X | 60X | 100X |
Numerical Aperture (N.A.) | 0.10 | 0.25 | 0.25 | 0.25 | 0.40 | 0.40 | 0.65 | 0.75 | 0.85 | 1.25 |
Working Distance (W.D.) | 15.3 | 10.67 | 10.67 | 10.67 | 7.29 | 7.29 | 0.72 | 0.72 | 0.20 | 0.14 |
Focal Length (F.L.) | 30.55 | 15.6 | 15.6 | 15.6 | 8.60 | 8.60 | 4.50 | 4.50 | 2.90 | 1.80 |
BRIGHTFIELD STRAIN FREE PLAN OBJECTIVES
• MA935: Strain Free Plan Objective 4X ∞/ 0.17, N.A. 0.10, W.D. 15.3mm, F.N. 24
• MA936: Strain Free Plan Objective 10X ∞/ 0.17, N.A. 0.25, W.D. 10.67mm, F.N. 24
• MA936D: Strain Free Plan Objective 10X ∞/ 0.17, N.A. 0.25, W.D. 10.67mm, F.N. 24
• MA936DC: Strain Free Plan Objective 10X ∞/ 0.17, N.A. 0.25, W.D. 10.67mm, F.N. 24
• MA937: Strain Free Plan Objective 20X ∞/ 0.17, N.A. 0.40, W.D. 7.29mm, F.N. 24
• MA937D: Strain Free Plan Objective 20X ∞/ 0.17, N.A. 0.40, W.D. 7.29mm, F.N. 24
• MA938: Strain Free Plan Objective 40X ∞/ 0.17, N.A. 0.65, W.D. 0.72mm, F.N. 24
• MA938D: Strain Free Plan Objective 40X ∞/ 0.17, N.A. 0.75, W.D. 0.72mm, F.N. 24
• MA939: Strain Free Plan Objective 60X ∞/ 0.17, N.A. 0.85, W.D. 0.20mm, F.N. 24
• MA940: Strain Free Plan Objective 100X ∞/ 0.17, oil, N.A. 1.25, W.D. 0.14mm, F.N. 24
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