Archived posting to the Leica Users Group, 1998/12/28
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Very very good Alexey. I am truly impressed. Thanks, Jim At 10:18 PM 12/28/98 +0000, you wrote: > >Contrast, ah yes. THAT is a (not "the") crux of the matter, as >Erwin Puts has pointed out so clearly, over and over. As Erwin >points out, the old DR Summicron 50 can resolve well over 100 >lp/mm but the Summicron-M is a much better performer, due in >large measure to its superior contrast at 10-20 lp/mm. See, for >discussion: > >...(long) > >As a biologist whose professional work revolves around optical >microscopy, perhaps I can add to this discussion. With the >green light that's often used, an optical microscope with >perfect diffraction-limited optics can resolve two points about >1 x 10^-7 m apart. >.......................................................................... >Alexey Merz | URL: http://www.webcom.com/alexey | email: alexey@webcom.com >