20nm CH4 Methane Filter ASI120MM and make colour gradients look

and make colour gradients look smoother and more natural-looking

which can detect more stars in view and shorten the exposure time in guiding

We recommend you use a 12V@3A~5A DC adapter (D5

About 90% transmission at H-alpha line 656nm (H-Alpha filter )

The Mainland China version is intended for activation and use exclusively within Mainland China

20nm CH4 Methane Filter ASI120MM and make colour gradients lookThe ZWO Methane band (CH4) filter is a special filter for photographical use. Its FWHM is 20nm which is suitable for most IR sensitive color or mono cameras. It can reveal the detail of the target and not too dark. It is recommended for planetary imaging such like Jupiter, Saturn and the other planets. This filter is a 1. 25(31. 7mm) filter and comes with an inner filter thread. It is protected in a plastic case.