A scaled up version of the ALTER M1208. Again custommade, can be ordered with any possible improvements.
Diffrent to smaller Maksutovs: Now begins the area of the real proffesionel construction. The mirrors cell now made with strong floatingcells for primary and secondary. Any tube is fully baffled, use cooling systems, balanceweights on both sides of the tube, proffesionell collimating tools for primary and secondary, guidingplates for larger guiding scopes, interferometrical testreport includet in any version, tubehandles for easy moving on mount, fully baffled dewcap.
| Technical Specification | Value |
|---|---|
| Clear Aperature | 356 mm |
| diameter of primary | 375 mm |
| Focallength | from F/10 to F/20 |
| diameter of secondary incl. Baffle | depends on focallength |
| tubediameter | 410 mm |
| tubelength | depends on focallength |
| tubeweight | depends on focallength [70-100 kg] |
| photografic field | 70 mm |
| quality warranted | diffraction limited, possible orders for 1/6 and 1/8 wavefront p.t.v. |