Sky Mentor 2" to SCT Adapter - TA39 90 Degree Diagonals This is called coma --

This is called coma -- coma is Latin for comet

Tripod-adaptable for extended viewing sessions

Tele Due has developed the "Tunable Top

The back of the flip mirror is also Al coated and masked to direct the light of an optional calibration lamp onto the slit of a spectrograph

Sky Mentor 2" to SCT Adapter - TA39 90 Degree Diagonals This is called coma --The Sky Mentor 2" to SCT Adapter is designed to attach to the rear cell threads for most all Schmidt Cassegrain style telescopes, with the exception of some larger 14" & 16" models. Once attached, you can insert accessories with 2" barrels, such as a 2" diagonal, imaging adapters, etc.