Hi all, been looking at the WO dura bright diagonal.
http://www.williamoptics.com/wo_shop...roducts_id=545
On the WO website, it claims to be 1/10 wave accuracy, but Andrews claim 1/15 wave. I would trust the WO site, but don't want to cast doubts on Andrew's claims either. Does anyone have this unit? Can you comment on this difference in claims?
Bo