DayStar Questar Quark (Prominence model)

daystarfilters.com/.../QuestarQuark.shtml

Type	Hydrogen-alpha (Hα)
Bandwidth	0.08 nm
Size	Other
Users	1
Images	9
Most often used with	ZWO ASI174MM

Community notes

A H-alpha etalon filter designed for use on 3.5" Classic QUESTAR Maktsutov telescopes. 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".