[LargeFormat] RE: IR filters

[Clive Warren]

At 12:06 am +0000 16/6/02, Marc Falcone wrote:
>Hi, Diane,
>
>I used the R72 and RG-9 with Konica IR 750 in a 6x12 panoramic back 
>mounted behind my Sinar F2 4x5 and had good results with ISO between 
>5 and 8.
>Marc

big snip

Marc,

Am assuming that the RG-9 is a Schott-Glass filter as they use the RG 
designation. Usually there are three numbers after the RG. What is 
the RG-9? The RG-695 is the R72/89B equivalent.

Your ISO ratings are similar to mine for Konica IR750.

More info in the InfraredFAQ at http://www.infraredfaq.org

Cheers,
        Clive