ZWO Filter Masks for Original Model of the EFW Mini Filter Wheel - EFW-5-MASKS 5mm Eyepieces CovalENS is the first ever

CovalENS is the first ever technology

Enhanced Optics: The 90 mm objective lens gathers significantly more light than standard 60 mm refractors

this can be used with optional third-party telescope control software by use of an ASCOM driver

which can be used with a timing belt to mount an optional electronic focuser

ZWO Filter Masks for Original Model of the EFW Mini Filter Wheel - EFW-5-MASKS 5mm Eyepieces CovalENS is the first everThese filter masks are specifically for the original version of the EFW Mini Filter Wheel. They come with M2 screws to secure the masks in place. Here are a few images of what the finished installation should look like, even if the example isn't your exact filter wheel model: To install the filters and masks: Remove the screws securing the back cover and remove the back cover Place filters onto the filter positions. Use the included M2 screws with