Categories | Amplification factor | Visual field diameter (mm) |
Grid eyepiece | 10X | Φ20 |
Cross eyepiece | 10X | Φ20 |
Graticule eyepiece | 10X | Φ20 |
Categories | Amplification factor | Numerical aperture (NA) | coverslip thickness (mm) |
Flat field infinitely far achromatic objective |
4X | 0.10 | — |
10X | 0.25 | — | |
20X | 0.40 | 0.17 | |
40X | 0.65 | 0.17 | |
60X | 0.85 | 0.17 |
Objective lense | Eyepiece | tube-factor | total magnification |
4X | 10X |
1X |
40X |
10X | 100X | ||
20X | 200X | ||
40X | 400X | ||
60X |