For a few months, I had been searching for an ultra-short focal length telescope with a fairly fast focal ratio to go with it. Unfortunately, a QSI 660wsg-8 CCD camera has a backfocus of 50.4mm, which exceeds the maximum backfocus distance supported by standard Canon or Nikon DSLR lenses. I sent an e-mail off to Ted Ishikawa of Borg telescopes and as usual, he replied in mere minutes with information - the Borg 45EDII. As per Ted's recommendation, this is Borg's smallest diameter telescope meant for astrophotography in terms of fast focal ratio, coma-free imaging and good CCD sensor illumination.