Archived posting to the Leica Users Group, 1996/04/16
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]>Roger, > >One additional comment. Essentially, you are looking at a trade off. On the positive side, if you use the 2X >extender, additional lens to subject distance will be gained - although such distance may not be needed in >many applications. On the negative side, two f-stops will be lost. Since the lens will most likely be closed >down to around f22 at 1:1, such a light loss may present a significant handicap. This depends, of course, upon >whether natural (my preference) or artificial light is employed. > >Bill Christensen Good points, Bill. My preference is always natural light whenever possible. Do I correctly infer that the ELPRO allows focusing between the 1:2 and 1.1:1 magnification ratios and that the maximum aperture of 2.8 still holds? I'm new to Leica and macro lenses. My micro and macro work was done years ago with Nikon F and extension tubes necessitating all the exposure calculations etc. Though difficult by today's standards, I knew, then, how to work within the scope of that equipment. This is actually much easier, but, alas, I am much older! -- Roger Beamon, Natural History Interpreter & Photographer Docent: Arizona-Sonora Desert Museum INTERNET: beamon@primenet.com