Optical tube Bresser Messier AR-90 90/900
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| Brand: | BRESSER |
| Description: | Refractor |
| Type: | Refractor |
| Lens diameter: | 90 mm |
| Seeker: | Optic |
| Max. useful magnification: | 180 x |
| Optical design: | Achromat |
| Eyepiece bore diameter: | 1.25 in. |