Extract from Steve's (Massey) Gstar-Ex users newsletter
GSTAR-EX images page - Includes a picture of Berts video finder.
http://www.myastroshop.com.au/guides...userimages.htm
"Steve Quirk (Frog Rock Observatory) in Mudgee NSW has been taking advantage of his dark sky location to produce some very nice results achieving magnitude 18 with the GSTAR-EX and his 12-inch Newtonian."