The optics are typical of the microscopes of this era: A: single objective lens; B: field lens; C: eye lens. The body tube could not be disassembled, thus the field lens could not be examined.
Eyepiece lens is plano-convex. Dia=1.7cm, f=3.8cm.
Objective "5" is a single plano-convex lens. Dia=9mm, f=1.9cm, aperture = 2mm.
| No. | Dia | f | Aperture | style |
| 2 | 6mm | 4 | 1.5 | Biconvex |
| 3 | 7 | 10 | 2.5 | B-C |
| 4 | 8.5 | 14 | 2.5 | B-C |
| 5 | 9 | 19 | 2.5 | B-C |
| 6 | 21 | 21 | 3.5 | Plano-Convex |
| * | 8 | 4 | 3 | B-C |
Reflected light objective and Lieberkuhn. s