The ZWO filter adapter ring that allows you to use 1.25″ filters with larger format 2″ filter drawers and filter wheels.

The Filter adapter Ring is compatible with the following ZWO products:

• ZWO 5×2” EFW
• ZWO 7×2” EFW
• ZWO filter drawer series, including the M42 filter drawer and the M54 filter drawer

No need for buying another set of filter drawers, the 2”-1.25”filter adapter ring will help you directly fit the 1.25”filter onto 2” filter drawer or filter wheel.

We recommend you use ASI533, ASI183, ASI294 and ASI1600 with this filter adapter ring since cameras with bigger sensors may lead to vignetting when matching the 1.25” filters.