The ZWO 2-inch Filter Drawer with 21mm ring design is independently developed by ZWO, which includes M42 * 0.75 male thread (camera side) and M48 * 0.75 female thread (filter end), M48 * 0.75 female thread (telescope side).
ZWO M42 Filter Drawer is Suitable for 2-inch astronomical filters and has useful magnets to help secure the drawer.
|Size:||M42 * 0.75 male(external) thread (camera side)|
|M48 * 0.75 female(internal) thread (filter end)|
|M48 * 0.75 female(internal) thread (telescope side)|
|Thickness:||21 mm (25 mm including thread)|