|
| Brand: |
National Geographic
|
| Equipment: |
Eyepieces H-20mm, H-12mm, SR-4mm, 3x Barlow lens, moon filter, red dot finder, star map
|
| Description: |
Refractor
|
| Type: |
Refractor
|
| Installation: |
Floor
|
| Lens diameter: |
90 mm
|
| Lens focal length: |
900 mm
|
| Automatic guidance: |
No
|
| Seeker: |
With red dot
|
| Tripod material: |
Aluminum
|
| Mount: |
Equatorial EQ3
|
| Number of eyepieces included: |
3
|
| Max. magnification with included eyepiece: |
675x
|
| Min. magnification with included eyepiece: |
45x
|
| Optical design: |
Achromat
|
| Relative hole: |
1:10
|
| Useful magnification: |
15x-180x
|
| Eyepiece bore diameter: |
1.25 in.
|
| Barlow lens magnification: |
3x
|