Re: Filter question.

[Clive Warren <Clive.Warren@xxxxxxxxxxxxxx>]

At 9:56 am -0400 10/8/00, Don Bryant wrote:
>
>Hi All,
>
>I acquired two new filters yesterday to be used with HIE and Maco IR films,
>a Hoya R72 and a Wratten 87.
>
>Can anyone suggest an EI for these films using these filters. I do realize
that Maco film is fairly "blind" with the 87.

 From the tech specs (IR FAQ):

Filter         HIE              Maco
R72 -        ISO 25           ISO 25
#87  -       ISO 25           ISO 25


The Maco with an 87 will probably be closer to ISO 12 but you will 
have to experiment :-)

-- 
All the best,

              Clive   http://www.cocam.co.uk
                      Photographic Services, Filters and Equipment, Infrared FAQ
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