| Variant of | Optolong H-Alpha 3nm |
|---|---|
| Type | Hydrogen-alpha (Hα) |
| Size | Round 2" |
| Bandwidth | 3 nm |
| Users | 251 |
| Images | 2525 |
| Most often used with | |
| Known retailers | Agena Astro |
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| Variant of | Optolong H-Alpha 3nm |
|---|---|
| Type | Hydrogen-alpha (Hα) |
| Size | Round 2" |
| Bandwidth | 3 nm |
| Users | 251 |
| Images | 2525 |
| Most often used with | |
| Known retailers | Agena Astro |