Archived posting to the Leica Users Group, 1999/10/27
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]- --------------3C782576D4097A46614008B2 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Jem Kime wrote: > JB, > I'm unsure of the technical significance but would imagine (and I've just > checked, so my guess was correct) that it signified the start of coating in > 1946. The significance to the response was that Mike Johnston had asked for > one later than 600,000. > Make sure to use a lens hood if you have an early lens, even if you have a > later one you'll get better pictures with a hood. > The ser. no. can be found on the black rim on the front of the lens which > has the aperture control on it. Finely engraved and hard to see. Though > very early Elmars (and they were made from 1925) had no ser. nos. Numbers > were engraved from 1933 onwards. > > best regards, > Jem > > -----Original Message----- > From: Joe B. [SMTP:joe-b@dircon.co.uk] > > At 09:20 PM 24/10/99 +0100, you wrote: > <snip> > I have a Leitz 50/3.5 Elmar and have been > >disappointed with that, even though its below SN 600000. > >Jem > > Jem- two questions- what is the significance of a serial no below 60000, > and- where is the serial number anyway? I can't see where it is on mine! > > JB JB , with a Elmar this age, it is possible that you have a certain amount of fungous on one ore more of the glass elements. Also some of the lubricating grease may have evaporated or migrated on to the glass, this leads to fogging. Both conditions will deteriorate the image to an extend. The fogging however, can be fixed, where as the fungous can normally not. As Jem said: "A lens hood will help too". As a matter of fact, a lens hood never harms. It will nearly always improve your image. The larger the better, on any lens. Regards, Horst Schmidt - --------------3C782576D4097A46614008B2 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit <HTML> <P>Jem Kime wrote: <BLOCKQUOTE TYPE=CITE>JB, <BR>I'm unsure of the technical significance but would imagine (and I've just <BR>checked, so my guess was correct) that it signified the start of coating in <BR>1946. The significance to the response was that Mike Johnston had asked for <BR>one later than 600,000. <BR><B>Make sure to use a lens hood if you have an early lens, even if you have a</B> <BR><B>later one you'll get better pictures with a hood.</B> <BR>The ser. no. can be found on the black rim on the front of the lens which <BR>has the aperture control on it. Finely engraved and hard to see. Though <BR>very early Elmars (and they were made from 1925) had no ser. nos. Numbers <BR>were engraved from 1933 onwards. <P>best regards, <BR>Jem <P>-----Original Message----- <BR>From: Joe B. [SMTP:joe-b@dircon.co.uk] <P>At 09:20 PM 24/10/99 +0100, you wrote: <BR><snip> <BR>I have a Leitz 50/3.5 Elmar and have been <BR>>disappointed with that, even though its below SN 600000. <BR>>Jem <P>Jem- two questions- what is the significance of a serial no below 60000, <BR>and- where is the serial number anyway? I can't see where it is on mine! <P>JB</BLOCKQUOTE> JB , with a Elmar this age, it is possible that you have a certain amount of fungous on one ore more of the glass elements. Also some of the lubricating grease may have evaporated or migrated on to the glass, this leads to fogging. Both conditions will deteriorate the image to an extend. The fogging however, can be fixed, where as the fungous can normally not. <P>As Jem said: "A lens hood will help too". As a matter of fact, a lens hood never harms. It will nearly always improve your image. The larger the better, on any lens. <P>Regards, Horst Schmidt <P> </HTML> - --------------3C782576D4097A46614008B2--