ASTRODON FILTERS IN WHEEL

This shows the RED and GREEN filters in place in the ZWO EFW. This is after I cleaned the filter surfaces to remove the incoming residue. They fit quite well in the ZWO wheel. All the filters were fully coated to the edge - unlike the ZWO filters. Due to the unblackened edges of the LRGB filters, I decided to use the filter masks that came to fix the ZWO filter leakage issue. At some point I will see what they look like without the filter masks.