S & T Test Report Dennis di Cicco Tele Vue's Big Paracorr Type-2 Designed for a small corner of the astrophotography market, this coma corrector has extraordinary potential. Tele Vue Big Paracorr Type-2 US price: $1,095, televue.com Tele Vue's Big Paracorr was key to transforming the author's 12-inch f/5 Newtonian reflector into a firstclass optical system used for the astrophotography with this review. The image above of the grand spiral galaxy M33 was assembled from 40-minute exposures through red, green, and blue filters with a CCD camera fitted with a KAF-16803 chip. All color astrophotographs with this review were processed by the author's colleague Sean Walker. ALL PHOTOS BY THE AUTHOR 72 April 2015 sky & telescope WHAT WE LIKE: Extraordinary coma correction for fast Newtonian reflectors Excellent coverage of large-format CCD chips The potential to make top-notch astrophotography more affordable WHAT WE DON'T LIKE: It is currently of interest mainly to do-it-yourselfershttp://www.televue.com