Take at look at what they`re doing down under...how about a 20" f5.5 cassegrain with a .8deg fully corrected field! http://www.triode.net.au/~anssen/ Funny what you run across while using google. cheers Duncan _______________________________________________ Astro-Photo mailing list Astro-Photo@seds.org http://seds.org/mailman/listinfo/astro-photo