Want to make your inexpensive dobsonian reflector perform like an instrument that costs twice as much? The Televue Paracorr is the best addition you can make to your reflector's eyepiece collection. Look through a typical reflector's eyepiece and you'll see a nice central image, but the closer you get to the edge you'll see an effect called coma. It's particularly bad with inexpensive, fast (f5.0 or less) dobsonian reflectors. Put this corrector in front of your eyepiece that'll all go away and you'll have nice round pin-point stars. :-)
Click here for an image of the Paracorr.
