ZWO Methane CH4 Filter - 1.25" - CH4 type-telescopes but is not necessary when

but is not necessary when connecting to standard cameras

5") diameter Optical Tube Weight: 8

Adding the ZWO O-III Narrowband filter to your imaging collection will help you go beyond the RGB imaging and will help capture your favourite nebulas in a totally new light

25" Speers-Waler Series 4

Optical design based on Carl Zeiss C Lens

ZWO Methane CH4 Filter - 1.25" - CH4 type-telescopes but is not necessary whenMethane is the main component of natural gas. CH4 is the scientific formula for Methane, which is comprised of one carbon atom bonded to four hydrogen atoms. The ZWO Methane (CH4) filter, with an FWHM of 20nm, is used primarily for planetary imaging, especially gas giants like Jupiter. It can be used with most IR sensitive color and monochrome sensors. This filter is a 1. 25(31. 7mm) filter and comes with an inner filter thread . It is protected in a