Mitutoyo 378-848-3 G Plan Apo 50X (t3.5) Objective for bright-field observation in visible range with cover glass compensation
SKU:Code: 378-848-3
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- brand Mitutoyo
- type Objective Lens
- mass 320g
- magnification 50x
- working distance 13.89mm
- numerical aperture 0.5
- working distance 13.89mm
- focal length 4mm
- resolving power (Microns) 0.6
- focal depth (Microns) 1.1
- view field 1 0.48mm Dia
- view field 2 spec_view_field_2
- view field 2 0.10x0.13mm
The G Plan Apo 50X is a precision plan apochromat objective specifically designed for bright field inspection through 3.5 mm thick cover glass. Engineered for applications where observation must be performed through protective or structural glass, this objective ensures accurate and high-contrast imaging without optical compromise.
Featuring an infinity-corrected optical system and high-quality plan apochromat design, the G Plan Apo 50X delivers flat-field performance and excellent chromatic correction across the visible wavelength range (436–656 nm).
With a working distance of 15.08 mm through 3.5 mm glass, the objective maintains practical clearance while providing a resolving power of 0.6 µm. Dedicated glass thickness correction ensures optimal image quality when observing through thick substrates.
Compatible with VMU / FS-70 / MF-U / Hyper MF-U microscope systems, the G Plan Apo series is ideal for industrial inspection environments where observation through thick glass is required.
Customisation Available: Mitutoyo can provide custom cover glass correction to suit specific applications. Thickness, material, and refractive index can be specified within standard limits.
Key Features
Designed for observation through 3.5 mm thick cover glass
High-quality Plan Apochromat optical design
Infinity corrected
Dedicated glass thickness compensation
Optimised for visible wavelength range (436–656 nm)
Custom cover glass correction available on request
Specifications
Model: G Plan Apo 50X
Magnification: 50x
Glass thickness correction: t3.5 mm
Working distance (through glass): 15.08 mm
Working distance (in air): 13.89 mm
Numerical Aperture (N.A.): 0.5
Corrected wavelength range: 436–656 nm
Resolving power: 0.6 µm
Depth of field: 1.1 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.): 96.19 mm
Spectral range: VIS
Observation mode: Brightfield
Glass compensation: Yes
Laser applications: No
Mass: 320 g