OTA · 2012–
Coronado SolarMax II 90
Key specifications
| Aperture | 90 mm |
|---|---|
| Focal length | 800 mm |
| Focal ratio | f/8.8 |
| Optical design | Achromatic Refractor |
All specifications
| Lens coating | Fully multi-coated |
|---|
About
90mm f/8.8 dedicated hydrogen-alpha solar refractor with an internal etalon and RichView tuning, available single- or double-stack with a BF15 blocking filter.
Where to buy
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