Addendum - Telescopes and Lenses |
BRESSER Messier AR-90s/500 |
updated: 2022-11-14 |
Bresser Achromatic (AC) 90/500 Messier OTA (no longer in use!)
This is a cheap entry level telescope, light, fast (f/=5,5) and easy to handle.
|
Specifications |
|
|
Type |
Refractor |
|
Type of build |
Achromat |
|
Aperture (mm) |
90 |
|
Focal length (mm |
500 |
|
Aperture ratio (f/) |
5,5 |
|
Resolving capacity |
1,28 |
|
Limit value (mag) |
11,6 |
|
Light gathering capacity |
170 |
|
Max. useful magnification |
180 |
|
Tube weight (kg) |
1,9 |
|
Tube length (mm) |
480 |
|
Tube diameter (mm) |
105 |
|
Tube construction |
Full tube |
Reference:
[1]: Astroshop: Bresser Telescope AC 90/500 Messier
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