| telescope → HasA → focal length | 0.45 | |
| telescope → HasA → focuser | 0.44 | |
| telescope → HasA → two mirrors | 0.38 | |
| telescope → HasA → aperture | 0.36 | |
| telescope → HasA → primary mirror | 0.35 | |
| telescope → HasA → larger aperture | 0.29 | |
| telescope → HasA → focal ratio of f/10 | 0.28 | |
| telescope → HasA → ritchey-chrétien optical config… | 0.28 | |
| telescope → HasA → a field of view | 0.27 | |
| telescope → HasA → narrow field of view | 0.27 | |
| telescope → HasA → feature | 0.25 | |
| telescope → HasA → large optical tube | 0.25 | |
| telescope → HasA → moving parts | 0.25 | |
| telescope → HasA → an f5 aperture ratio | 0.19 | |
| telescope → HasA → good optics | 0.19 | |
| telescope → HasA → a vixen-style universal dovetai… | 0.16 | |
| telescope → HasA → troubled start | 0.16 |