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DayStar Quark (Chromosphere model)
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DayStar Quark (Chromosphere model)
daystarfilters.com/.../Quark.shtml
| Type | Hydrogen-alpha (Hα) |
|---|---|
| Bandwidth | 0.05 nm |
| Size | Other |
| Users | 244 |
| Images | 2590 |
| Most often used with | |
| Known retailers | High Point Scientific · Agena Astro ( |
Community notes
A H-alpha etalon filter integrated with a 4.3X telecentric Barlow, optimal for use on refractors with a focal ratio from F/4 to F/8.
From the [url=http://www.daystarfilters.com/downloads/QuarkFlyer.pdf]product flyer[/url]:
"Due to variation in the end user application, we cannot specify the precise FWHM of the filter. Instead, units of 0.8 - 0.6 Å are classified as PROMINENCE and units of 0.5 - 0.3 Å are classified as CHROMOSPHERE".
This item has a history of 5 approved edit proposals.