| Brand | Arcturus |
|---|---|
| Type | Hydrogen-Beta Filter |
| Size | 2.0 in |
Check the listing for details. Arcturus Hydrogen-Beta Filter 2" (LIMITED QUANTITIES). Condition: New. Listed at 99.95 USD. It blocks everything but the hydrogen-beta light these faint nebulas emit, providing the contrast needed for viewing. It increases contrast even under dark skies so you can visually capture these prized targets.
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