Mitutoyo 378-805-3 M Plan Apo 50X Objective for bright-field observation in visible range
SKU:Code: 378-805-3
The UKs Leading Metrology Distributor
Trusted by the biggest companies in the UK
Need more information? Ask a question or contact us.
- brand Mitutoyo
- mass 290g
- magnification 50x
- working distance 13mm
- numerical aperture 0.55
- working distance 13mm
- focal length 4mm
- resolving power (Microns) 0.5
- focal depth (Microns) 0.9
- view field 1 0.48mm Dia
- view field 2 0.10x0.13mm
M Plan Apo 50X Objective Lens (Brightfield, High Detail Imaging)
The M Plan Apo 50X is a precision 50x metallurgical microscope objective designed for brightfield observation across the visible spectrum. With a numerical aperture of 0.55, it delivers excellent image clarity and fine detail, making it ideal for high-magnification inspection and measurement applications.
This objective features an infinity-corrected optical design and is corrected across a wide wavelength range (436–656 nm) for consistent optical performance and reliable colour reproduction. With a 13 mm working distance, it offers a practical balance between magnification, resolution, and sample clearance.
Compatible with VMU / FS-70 / MF-U / Hyper MF-U microscope systems, the M Plan Apo 50X is a dependable choice for precision brightfield observation and surface inspection.
Note: To avoid optical flare when using coaxial illumination, 1x objectives should be used together with a polarisation unit and an attached 1/4 wavelength plate.
Key Specifications
Magnification: 50x
Working Distance (in air): 13 mm
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): ø0.48 mm
Field of view (1/2” camera chip): 0.1 × 0.13 mm
Parfocal distance (P.D.): 95 mm
Spectral range: VIS
Observation mode: Brightfield
Glass compensation: No
Mass: 290 g