Archived posting to the Leica Users Group, 1997/12/11
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Marc wrote: >>The center filters that Zeiss made for the 15mm Hologon >>camera and Leica mount lens is also not very good, having sharp cutoff at >>the edges of the center grey part instead of the smooth transition it >>should. > >Well, Zeiss put a LOT of effort in designing these filters precisely for >the Hologon lens, and they were excruciatingly expensive to manufacture. >The sharp cutoff was by intention, as that is what the characteristics of >the lens required. The lens certainly does not require a sharp cutoff. My slides have a discernible, sharp change in density in sky areas at the cutoff point. As stated, the Schneider Center Filters I have used do not do this. Zeiss screwed up. (sorry, Marc :-)). * Henning J. Wulff /|\ Wulff Photography & Design /###\ mailto:henningw@archiphoto.com |[ ]| http://www.archiphoto.com