From: "Raimo K" <[EMAIL PROTECTED]> > Multi-layer coatings were developed much later, jointly by Zeiss and Pentax. > SMC Takumar lenses were introduced in 1971
You are mistaken. The techniques of multilayer coating developed during WWII and were used in lenses even in the 50:s. What Pentax and Zeiss did was to find methods of applying it in a economically feasible way. > - war had ended before that even in �land islands. As indicated above - multilayer coating techniques were under development during a time when also Finland was at war during the WWII. Lasse > 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 7:00 PM > Subject: Re: Looking for a 120 carry-around camera > > > > It struck me, Sven - maybe you are thinking of multilayer coating > techniques, which indeed I believe were developed during WWII-time? > > > > Lasse > > > > From: "Lasse Karlsson" <[EMAIL PROTECTED]> > > > 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 > > > > > > > > > > >
