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Product Family Description
- Ideal for Brightfield and Darkfield Microscopy Applications
- Long Working Distances and High Numerical Apertures
- Plan Apochromat Design
Mitutoyo Brightfield and Darkfield (BD) Infinity Corrected Objectives offer long working distances with high numerical apertures. The high-quality plan apochromatic design allows these objectives to maintain high numerical apertures and contrast while correcting chromatic aberration in the visible wavelength region. These objectives feature M40 x 36TPI mounting threads. Mitutoyo Brightfield and Darkfield (BD) Infinity Corrected Objectives are optimized for both brightfield and darkfield illumination for applications including surface inspection and advanced life science microscopy.
Note: If compatible tube lens MT-1 (#54-774) or MT-2 (#56-863) are used to build a custom setup, an additional darkfield stop is needed to use darkfield illumination.
Technical Information
| Dimensions (mm) | ||||||||
| Stock No. | BD Plan Apo | A | B | C | D | E | F | W.D. |
| #18-402 | 2X | 61.0 | 4.0 | 40.0 | 37.0 | 42.0 | 44.0 | 34.0 |
| #18-403 | 5X | 61.0 | 4.0 | 40.0 | 37.0 | 42.0 | 44.0 | 34.0 |
| #18-404 | 7.5X | 61.0 | 4.0 | 40.0 | 37.0 | 42.0 | 44.0 | 34.0 |
| #18-405 | 10X | 61.0 | 4.0 | 40.0 | 37.0 | 42.0 | 44.0 | 34.0 |
| #18-406 | 20X | 75.0 | 7.0 | 40.0 | 32.0 | 42.0 | 44.0 | 20.0 |
| #18-407 | 50X | 82.0 | 8.5 | 40.0 | 32.0 | 42.0 | 44.0 | 13.0 |
| #18-408 | 100X | 89.0 | 10.0 | 40.0 | 31.5 | 42.0 | 44.0 | 6.0 |
|
Stock No. |
BD Plan Apo SL | A | B | C | D | E | F | W.D. |
| #18-409 | 20X SL | 64.5 | 7.5 | 40.0 | 31.0 | 42.0 | 44.0 | 30.5 |
| #18-410 | 50X SL | 75.0 | 7.0 | 40.0 | 32.0 | 42.0 | 44.0 | 20.0 |
|
Stock No. |
BD Plan APO HR | A | B | C | D | E | F | W.D. |
| #18-411 | 50X HR | 89.9 | 4.8 | 40.0 | 32.0 | 42.0 | 44.0 | 5.2 |
| #18-412 | 100X HR | 93.7 | 4.7 | 40.0 | 32.0 | 42.0 | 44.0 | 1.3 |
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