Universal 1-inch T-Adapter fits (drop in style) any type of
telescope that uses a 1-inch focuser or visual back.
A T-Adapter allows you to attach your 35mm SLR camera to the prime
focus of your telescope or spotting scope. This arrangement is used
for terrestrial photography and short exposure lunar and planetary
photography. It can also be used for long exposure deep-sky
photography when using a separate guidescope.
Both a T-Adapter and T-Ring are required to mount a 35mm SLR camera
to your instrument.