Adapter for a Coronado SM40 Ha Filter to the front of an ED80 scope.
The SM40 screws into the adapter and the adapter slides over the end of the dew shield on the ED80. I recommend some electrical tape as a safety precaution so the adapter can't "fall off" the scope even though the fit feels firm.
Note an SM40 in front of a normal scope like the ED80 requires an appropriate blocking filter such as a Lunt B1200 to be safe to use!
