Celestron #93519 2" multicoated mirror star diagonal for SCT's.
Includes 1.25" adapter.
This diagonal mates directly to standard SCT threads,
thus eliminating the visual back and keeping the light path
short enough to avoid the focusing problems of some
other 2" diagonals.
Some marks on the lip of the 1.25" opening; otherwise
excellent. I do not have the original box or caps.
Advertised new price for this unit is $135 + shipping.
$70 shipped CONUS.