On 28 Sep 2006, at 16:01, "William Abbott" wrote: > Can older lenses have their performance "improved" by a one-shot > measurement of their inadequacies and the prescription of a digital > correction? > This is known as "CA Correction", and has been available in many kinds of software for years. See the links I have to the better ones in the FAQ at: <http://nemeng.com/leica/008f.shtml#ca> Regds, Andrew N. <http://nemeng.com> Blue Mountains Australia ------ Unsubscribe or change to/from Digest Mode at: http://www3.telus.net/~telyt/lrflex.htm Archives are at: //www.freelists.org/archives/leicareflex/