Archived posting to the Leica Users Group, 2008/06/13
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]>The kind of really smart and cool stuff we expect from Rollei usually. >But I feel like to be correct we should not be referring to it as a >"filter". > > > >mark@rabinergroup.com >Mark William Rabiner > > It's a filter. But it only works with one kind of film. That's why it's not such a smart idea. What works with Maco 820 doesn't work with HIE, or equivalent emulsions. > >> From: Henning Wulff <henningw@archiphoto.com> >> Reply-To: Leica Users Group <lug@leica-users.org> >> Date: Fri, 13 Jun 2008 15:54:18 -0700 >> To: Leica Users Group <lug@leica-users.org> >> Subject: Re: [Leica] M8 and the WAR >> >>> Jim und David, >>> >>> Let it be Known that the Rolleiflex Infra-Red filters have a "lens >>> correction" >>> built into them to compensate for IR focus shift. >>> >>> BTW, I have a Leica E-39 size IR filter available, should anyone want >>> it. >>> >>> Jerry >>> >> >> >> >> >> That's interesting. >> >> I assume it's a slight diopter ground into the filter, to compensate >> for some specific IR wavelength (which any specific film may or may >> not be sensitive to). >> >> >> -- >> * Henning J. Wulff -- * Henning J. Wulff /|\ Wulff Photography & Design /###\ mailto:henningw@archiphoto.com |[ ]| http://www.archiphoto.com