The Celestron 1.25" Universal Barlow & T-Adapter can be used in three different ways - as a 2X Barlow for visual use, as a prime focus T-Adapter, or as a “Barlowed” T-Adapter for double the magnification with the benefit of extra inward focus travel.When used with a T-Ring (sold separately) and compatible DSLR or SLR, this adapter can be used for prime focus photography. This allows you to take short exposure images of terrestrial objects, and celestial objects like the Moon.
