Archived posting to the Leica Users Group, 2008/06/13
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Correction lens? --- mark@rabinergroup.com wrote: From: Mark Rabiner <mark@rabinergroup.com> To: Leica Users Group <lug@leica-users.org> Subject: Re: [Leica] M8 and the WAR Date: Sat, 14 Jun 2008 00:04:30 -0400 Well you're not supposed to call those close up filters filters. You're supposed to call thems something else. I forgot what. Dioptors maybe. mark@rabinergroup.com Mark William Rabiner > From: Henning Wulff <henningw@archiphoto.com> > Reply-To: Leica Users Group <lug@leica-users.org> > Date: Fri, 13 Jun 2008 19:58:56 -0700 > To: Leica Users Group <lug@leica-users.org> > Subject: Re: [Leica] M8 and the WAR > >> 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 > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information _______________________________________________ Leica Users Group. See http://leica-users.org/mailman/listinfo/lug for more information