For sale is mint William Optics 28mm 82deg AFOV UWAN eyepiece. I am the first owner (purchased 05/2009) and always kept it in the eyepiece case with plenty of silica gel. There is a couple very minor marks on the barrel from the focuser, optical surfaces are as new (see photos attached).
Comes in the original foam lined box with the warranty card, receipt and a cleaning cloth.
I like this eyepiece a lot but it needs to make way for 21mm Ethos. It performs brilliantly in my 12" f/5 reflector - very sharp with excellent contrast and non-objectionable coma at the edges at f/5.
There is a UWAN series review on cloudynights:
http://www.cloudynights.com/item.php?item_id=1433
Price reduced to $300 posted, current new price is $455 at staroptics
(
http://118.127.11.230/catalog/produc...roducts_id=333 ) and above $500 elsewhere.
Alex