| Observation tube |
infinitely variable |
| Ocular |
crosshairs |
| Scale reading precision |
1 angle min. |
| Objective |
field number 18, 160 mm focal distance |
| Prism |
Flint glass (60°) |
| Dispersion angle |
C – F = 2° |
| Slit tube |
Symmetric precision slit of hardened steel |
| Height of the optical axis above the specimen table |
0 – 20 mm |
| Suitable height of the specimen |
5 – 50 mm |
| Focal length collimator |
178 mm |
| Focal length telescope |
178 mm |
| Magnification eyepiece |
15x |
| Free aperture |
32 mm |
| Width entrance slit |
0 – 2 mm |
| Diameter specimen table |
85,5 mm |
| Diameter of the scale |
176 mm |
| Resolution |
0°0’30” |
| Achievable measuring accuracy |
± 1’ |
| Scope of delivery |
Main body incl. collimator, telescope, stage for the specimen
Prism holder with retaining screws
Holder for the diffraction grating
Prisms
Magnifying glass for the better readability of the scale
Dust case |