Archived posting to the Leica Users Group, 2006/11/19
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]that sounds like a great idea On 11/19/06, Roy Feldman <roy@detroitphotographic.com> wrote: > I have, in the past, been a victim of cameras that need a hot mirror filter > (several DCS models) and in fact have a friend that makes the glass that > goes in them. According to him it is an extremely thin coating that is > designed to cut off certain wave lengths. > His question to me was why not apply this coating to the glass covering the > sensor? The Popular Photo article seems to imply that this (frequency) cut > off is determined by the thickness of the filter (on the sensor) but my > friend got a very strange look on his face when I mentioned this reply, > especially since the Leica spokesman said that there was some coating on > the > sensor filter already.Remember not to equate the function of an anti-alies > filter > I have no basis for my assumption that to pull out the existing sensor > filters and re coat them or apply a new sensor cover with a stronger IR cut > off would cost too much. > After all, the solution for Kodak sensors since the beginning has been to > force buyers into hot mirror filters and this is one of the reasons the > Kodak professional line of digital cameras has been such a roaring success > story. > > -- > Roy Feldman, photojournalism & editorial photography > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information > -- ------------------------------------- regards, mehrdad