The idea of coating a lens in order to suppress reflections is about 100 years old but first practical method of coating was developed by Zeiss during the WWW II. Many lenses were coated afterwards. All the best! Raimo K Personal photography homepage at: http:\\www.uusikaupunki.fi/~raikorho
----- Original Message ----- From: "Lasse Karlsson" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, March 25, 2004 6:20 PM Subject: Re: Looking for a 120 carry-around camera > From: "keller.schaefer" <[EMAIL PROTECTED]> > > Coating started to become common after WWII. No pre-war lens on any publicly > > sold camera will have coating - unless applied later. > > Sven > > I think that you are mistaken. The process and finding that certain coating would suppress reflections on glass surfaces was discovered by accident - I think - around 1907-1909, although memory may slip here. > As far as I can recall, coating camera lenses got common already during the twenties. > I have in my possession a Zeiss Ikon 6x9 folder camera from the mid thirties (to tell by it's serial number) which is clearly, visibly coated. (I haven't had any reason to believe it was applied later or had a the lens exchanged, although this may be thinkable.) > > If you, or anyone, happen to have any lnks or other references to show that I'm mistaken on this, I would be grateful, in order to avoid future misinformation. > > Thanks, > Lasse. > > > Zitat von Lasse Karlsson <[EMAIL PROTECTED]>: > > ...> I think that any camera lens made since the about the 1920:s will be > > coated. > > > > > > Lasse > >

