ZWO 20nm CH4 Filter - 1.25-Inch:
This ZWO methane filter (CH4) is a filter specifically designed for photographic use to single out that element on the spectrum of light. It has a Full-Width-Half-Maximum (FWHM) of 20nm. This makes it suitable for most IR sensitive color or mono cameras.
The CH4 filter can show solid detail without darkening the view too poorly, and is ideal for planetary imaging with targets such as Jupiter or Saturn.
This filter is 1.25-inch Mounted with an inner filter thread. Includes as protective storage case.
See below image for the CH4 methane filter transmission line.
OPT Product Number: ZWO-20CH4