[ Bosma 102-700 product photo ]
Release Date: 1970.12
brand: Bosma
type: Telescope
detail:
Telescope works: SEMI-APO (Associate Senior Complex Consumer ... Focal length: 700mm focal ratio: 7 lens: 100mm Resolution: 1.16 inches arc second set of light power: 204 * limiting magnitude: 11.9 Eyepiece: PL10, PL25 ( 31.7mm) Tripod: TP2 junior aluminum tripod finder: 7 * 50 finder tube: aluminum alloy special solid-body mirror
detail more:
Basic parameters
| Telescope works | SEMI-APO (Associate Senior APO) | |
| Focal length | 700mm | |
| Coke ratio | 7 | |
| Objective | 100mm | |
| Set of light power | 204 * | |
| Resolution | 1.16 inches arcsec | |
| Limiting magnitude | 11.9 | |
| The length of the primary mirror | 740mm | |
| The weight of the primary mirror | 4000g | |
| Focus Block | Focus 2-inch Focus Block, cylinder, all-metal focusing Block |
| Tube | Special solid body aluminum alloy mirror |
| Equatorial mount | EM8 large equatorial mount | |
| Finder | 7 * 50 finder | |
| Zenith mirror | 90 degrees zenith prism of metal (up and down just as) | |
| Eyepiece | PL10, PL25 (31.7mm) | |
| Filter | Moon filter | |
| Tripod | TP2 junior aluminum tripod |