Posts Made By: john martin

February 6, 2004 01:15 AM Forum: Equipment Talk

Has anyone used the endover nebular filter. how does it compare to lumicon and other filters.

March 22, 2004 09:42 PM Forum: Home Observatories

I have this idea i

October 16, 2002 10:07 PM Forum: Home Observatories

dear jim i would like to see your portable observatoory and give me an idea on how to make it.