Hi Princess,
These are both made by the same company, Barsta (BST), but they are definitely different eyepieces. The ones that resemble the old TMB Planetary eyepieces, the BST Planetaries:
are 58° AFOV and average about 16 mm of Eye Relief. The Dual ED StarGuider / AT Paradigm eyepieces use ED glass and have a 60° AFOV, and also average about 16 mm of Eye Relief in those shorter focal length sizes:
There is a running CN thread on the 3.2 mm versions of both of these eyepieces:
https://www.cloudyni...mm-vs-bst-32mm/
In my experience, either one would be fine to compare to a Barlowed 6 mm eyepiece. Of course, the real question is what 6 mm eyepiece are we talking about here; and to some degree the Barlow being used as well
Edited by Oldfracguy, 11 October 2024 - 01:08 PM.