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ZWO 2″ Filter Drawer with M48 / M42 Connections

ZWO 2″ Filter Drawer with M48 / M42 Connections


The ZWO 2″ Filter Drawer with M48 / M42 Connections is mainly for use with colour cameras where there’s usually no need for lots of filters.

Double strong magnets provide strong hold, easy installation and removal.

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The ZWO 2″ Filter Drawer with M48 / M42 Connections and 21mm ring thickness has been independently developed by ZWO. It includes an M42 * 0.75 male thread on the camera side and M48 * 0.75 female thread on the telescope side, and it is suitable for 2″ filters (the drawer has got a M48 * 0.75 female thread).

The main idea of a filter drawer is to use it with a colour camera where there is usually no need for lots of various filters, usually just few filters need to be swapped between sessions. One of these would normally be either a UV/IR-cut off or light pollution filter (CLS, UHC etc) and the other filter would be a narrowband, i.e. H-alpha or a Dual Band filter.

The double strong magnets create stronger hold, easier installation and removal.

zwo filter drawer

The ZWO 2″ Filter Drawer with M48 / M42 Connections has a lock screw on the side of it. The locking function is helpful with adjusting the tension to eliminate the gap, which is a double insurance for users.


With the ability of double strong magnetic pull, it is more convenient and much easier to install or pull out the filter.

zwo filter drawer-2

The filter drawer also comes with a M48-M42 adapter. You can use it with your camera or your telescope.


zwo filter drawer-3

Mechanical Drawing


66mm (height) * 66mm (length) * 21mm (thickness)

M42 * 0.75 male thread (camera side)

M48 * 0.75 female thread (filter end)

M48 * 0.75  female thread (telescope side)

Suitable for 2-inch astronomical filters


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