Archived posting to the Leica Users Group, 1997/09/23[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]
Filters: Yes, they do degrade the image to a degree, and even the ubiquitous UV or Skylight filter alters the color of the light that the film "sees" somewhat. [NOMEX ON] Having said that, I use them on my lenses because the cost of damaging the front element exceeds the benefit of the unfiltered image for me. In cases where the enviromental risk is small or non-existent, I'll go without them, but otherwise, I can't afford not to use them for protection. [NOMEX OFF]. Of course, if you need to correct color balance, or use a polarizer, or whatever, the question is moot, since filters are typically the only relatively convenient option if the shot can't be recomposed to avoid the problem. I beleive that "Wetzlar" indicates that the lens was manufactured in Germany. Some Leica lenses were (and are?) manufactured in Canada. My impression is that the German made lenses command a slight premium, but my impression could be wrong. There are many books with listing of serial numbers for Leica lenses. The Hove pocket guides have tables in the back and are decent references for figuring ut what's what. My copies are a bit dated, since I haven't needed to buy lenses in a while so other LUG'gers may be able to suggest more recent references. ______________________________ Reply Separator _________________________________ Subject: Filters Author: Jack Gottlob <email@example.com> at INTERNET I recently acquired an M6 with a 50mm lens. Does a filter placed on the lens degrade it's capabilities? I have also noticed "Wetzler" in some of the lens ads. How do these lenses differ from other Leica lenses? I'm going to have to complete the system with used lenses. Would someone kindly recommend a book which will tell me how to read the serial numbers to deturmine the age of the lens?