Archived posting to the Leica Users Group, 2000/05/18
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]As a matter of interest Sigma use a lens in front of the main lens to achieve 1:1 ratio with their 90mm macro lens. And they have been known to manufacture for Leica under Leica quality control. Who knows!? Gerry - ----- Original Message ----- From: Arthur Leyenberger <larthurl@yahoo.com> To: Leica Users Group <leica-users-digest@mejac.palo-alto.ca.us> Sent: 18 May 2000 20:42 Subject: 100 R Macro (was [Leica] 60 Macro Elmarit-R) > Ferrel Anderson wrote.. > <<my 100 APO Macro Elmarit-R lenses to be > my best lenses. The APO lens was the best for > resolution, but we're talking about > gilding the lilly here. If I were reduced to one > lens, I would keep the 60.>> > > Ferrel do you or anyone know why does Leica use > another lens, in front of the 100mm macro, to achive > life size when other manufacturers use an > extension tube to get to 1:1 ratio (life size) with > their macro lenses? > I've always thought the more glass (additional lenses, > filters, etc.) you put in front of your prime lens, > the more degraded the image will be. I guess Leica has > a reason for doing it this way. > > .....Art in NJ, USA > > > __________________________________________________ > Do You Yahoo!? > Send instant messages & get email alerts with Yahoo! Messenger. > http://im.yahoo.com/