BRESSER Bresser National Geographic 90/900 EQ
refractors, max. useful gain: 675 x, lens diameter (aperture): 90 mm, focal distance: 900 mm, relative hole: 10 :1
refractors, max. useful gain: 675 x, lens diameter (aperture): 90 mm, focal distance: 900 mm, relative hole: 10 :1
Main Characteristics |
|
Types of Telescopes |
refractors |
max. useful increase |
675x |
Lens diameter (aperture) |
90 mm |
Focal Distances |
900 mm |
Relative openings |
10 :1 |
Self-guided system |
|
Type of mounting |
equatorial |
Functions and features |
|
Number of eyeglasses in the kit |
3 |
Planting diameter of the eyepiece |
1.25 " |
Turning Lens |
|
Revolving mirror |
|
Turning prism |
|
Lynza Barlow |
3 |
Optical searcher |
|
Computerized mounting |
|
Automatic Attachment to the Sky |
|
Computer-based control |
|
GPS |
|
Clockwork mechanism |
|
Adjustment of fluency |
|
Fine-tuning mechanism |
|
Statutory |
Aluminium |