And don't forget the f/5 N6-AT LXD75 on sale at Lidl tomorrow (there's a thread in the General forum, including a link to a scan of the printed ad). 152mm of aperture and low magnification. Given the same OD and eyepiece long focal lengths like those of a Maksutov will spread the available light from DSOs across more of the objective and therefore make them dimmer, short focal lengths like those of the N6-AT or SN6-AT will show DSOs as smaller but brighter objects.
John
Better that old people should die of talk than to have young people die in war.
  