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Mitutoyo 378-830-7 | BD Plan Apo 7.5x Objective | N.A. 0.21, WD 34 mm
The 378-830-7 is the BD Plan Apo 7.5x objective, a 7.5x lens with numerical aperture 0.21 and a working distance of 34 mm in air. It is a plan apochromat for both bright-field and dark-field inspection in the visible range, with infinity correction.
Key features
- Resolving power 1.3 µm; depth of field 6.2 µm
- Corrected wavelength range 436-656 nm
- Field of view ø3.6 mm with a ø24 mm eyepiece; 0.64 x 0.85 mm on a 1/2-inch camera chip
- Focal distance 26.67 mm
- Compatible microscope types: MF-U / Hyper MF-U
- Mass 350 g
- Specifications
- Downloads
| Part Number | 378-830-7 |
| Brand | Mitutoyo |
| Magnification | 7.5x |
| Numerical Aperture | 0.21 |
| Working Distance | 34 mm (in air) |
| Corrected Wavelength | 436-656 nm |
| Correction | Infinite |
| Focal Distance | 26.67 mm |
| Resolving Power | 1.3 µm |
| Depth of Field | 6.2 µm |
| Field of View (ø24 mm eyepiece) | ø3.6 mm |
| Field of View (1/2-inch camera) | 0.64 x 0.85 mm |
| Spectral Range | VIS |
| Mass | 350 g |
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