
- brand Mitutoyo
- mass 290g
- magnification 100x
- working distance 13mm
- numerical aperture 0.55
- working distance 13mm
- focal length 2mm
- resolving power (Microns) 0.5
- focal depth (Microns) 0.9
- view field 1 mm Dia
- view field 2 0.05x0.06mm
M Plan Apo SL 100X Objective Lens (Brightfield, Extra-Long Working Distance)
The M Plan Apo SL 100X is a high-precision 100x metallurgical microscope objective designed for brightfield observation in the visible spectrum. Built with an extra-long working distance of 13 mm, it is ideal for inspecting samples where clearance is essential, without sacrificing optical accuracy.
This objective features infinity correction, a numerical aperture of 0.55, and is corrected across a wide wavelength range (436–656 nm) for reliable imaging and consistent colour performance. With a resolving power of 0.5 µm and a depth of field of 0.9 µm, it delivers detailed surface inspection for demanding industrial and laboratory applications.
Compatible with VMU / FS-70 / MF-U / Hyper MF-U microscope systems, the M Plan Apo SL 100X is a robust and reliable choice for precision observation work.
Key Specifications
Magnification: 100x
Working Distance (in air): 13 mm (extra-long)
Numerical Aperture (N.A.): 0.55
Infinity corrected: Yes
Corrected wavelength range: 436–656 nm
Resolving power: 0.5 µm
Depth of field: 0.9 µm
Field of view (ø24 mm eyepiece): ø0.24 mm
Field of view (1/2” camera chip): 0.05 × 0.06 mm
Parfocal distance (P.D.): 95 mm
Spectral range: VIS
Observation mode: Brightfield
Glass compensation: No
Mass: 290 g