Nils Olof Carlin... Aug 15, 2017 11:08:21 GMT -8 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by Deleted on Aug 15, 2017 11:08:21 GMT -8 Passed away yesterday. One of the best experts on collimation. Get his book!Last month or so Howie Glatter passed. Lots of greats gone lately.R.I.P. both of you.MMc