Celestron C8
Specifications:
• Schmidt-Cassegrain
• Aperture: 203 mm
• Focal length: 2032 mm
• Focal ratio f/10
Orion ED100
Specifications:
• ED Doublet (FPL-53)
• Aperture: 100mm
• Focal length: 900mm
• Focal ratio f/9
Orion ED80
Specifications:
• ED Doublet (FPL-53)
• Aperture: 80mm
• Focal length: 600mm
• Focal ratio f/7.5
Skywatcher Startravel-80
Specifications:
• Achromatic doublet refractor
• Aperture 80mm
• Focal length 400mm
• Focal ratio f/5
Tasco 17TR
Specifications:
• Achromatic doublet refractor
• Aperture 80mm
• Focal length 900mm
• Focal ratio f/11.25
Binoculars
Omegon Argus 16×70
| Type of build | Porro prisms |
| Magnification | 16 |
| Front lens diameter (mm) | 70 |
| Exit pupil (mm) | 4,3 |
| Interpupillar distance (mm) | 56-70 |
| Glass material | BaK-4 |
| Lens coating | fully, multiple |
| Focusing system | Single focusing |
| Eyepiece cups | folding |
| Diopter-adjustment side | on both sides (Single eyepiece focusing) |
Helios Naturesport
