Archived posting to the Leica Users Group, 2007/05/19
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]From: "John Biava" <leicam4pro@yahoo.com> To: "Leica Users Group" <lug@leica-users.org> Sent: Friday, May 18, 2007 12:53 AM Subject: Re: [Leica] geebee Ilford SFX processing > > The exact characteristics of the filter you are using also make a big > difference. A R 25 is not really an IR filter, but seems > to be about all that is readily available now. > ------------------------------------------------------------------------------------------------ John, I have a Leitz IR filter in 48mm for my 90 cron which I had completely forgotten until I read your post so I may have to revisit SFX. I think also that SFX just has heightened sensitivity to red but isn't a true IR film. --Graham