Mitutoyo 378-863-5 M Plan Apo NIR HR 50X High resolution objective for bright-field observation in near-infrared range
SKU:Code: 378-863-5
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- brand Mitutoyo
- type Objective Lens
- mass 450g
- magnification 50x
- working distance 10mm
- numerical aperture 0.65
- working distance 10mm
- focal length 4mm
- resolving power (Microns) 0.42
- focal depth (Microns) 0.65
- view field 1 0.48mm Dia
- view field 2 0.10x0.13mm
The M Plan Apo NIR HR 50X is a high-performance plan apochromat objective designed for bright field inspection and laser-based applications requiring maximum resolving power across the visible to near-infrared spectrum.
With wavelength correction from 480–1800 nm (Visible to Near-Infrared), this objective maintains image focus within the focal depth when switching between visible and NIR illumination. This makes the M Plan Apo NIR series particularly suitable for laser repair and multi-wavelength inspection applications.
As a High-Resolving Power (HR) model, the 50X features a high numerical aperture of 0.65, delivering an impressive resolving power of 0.4 µm and a shallow depth of field for enhanced surface detail and contrast. Its infinity-corrected plan apochromat design ensures flat-field imaging and strong chromatic correction across the extended spectral range.
Designed for compatibility with VMU and FS-70 microscope systems, this objective provides precision imaging for advanced industrial and laboratory environments.
Note: When operating above 1100 nm, the focusing position may deviate slightly from that in the visible range due to changes in glass dispersion and refractive index.
Key Features
Suitable for bright field inspection and laser-based applications
Wavelength correction from 480–1800 nm (Visible to Near-Infrared)
High-Resolving Power (HR) design
High numerical aperture (0.65) for enhanced detail
High-quality Plan Apochromat optical design
Infinity corrected
Specifications
Model: M Plan Apo NIR HR 50X
Magnification: 50x
Working distance (in air): 10 mm
Numerical Aperture (N.A.): 0.65
Corrected wavelength range: 480–1800 nm
Resolving power: 0.4 µm
Depth of field: 0.7 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: Near-Infrared (NIR)
Observation mode: Brightfield
Glass compensation: No
High Resolution: Yes
Mass: 450 g