Re: Filters for EIR

["Willem-Jan Markerink" <w.j.markerink@xxxxx>]

On 13 Jun 00 at 16:10, Corrie Zacharias wrote:

> Hi all -
> 
> I just received some Kodak EIR film (thank you, Rolland, for such quick 
> service), and I had a question about which filter to use. The only yellow 
> filter I have is a Hoya yellow K2, which I understand isn't deep enough for 
> EIR. I also have a Hoya orange (G). Neither of the filters have numbers on 
> them, so I'm assuming the yellow is a #8, and the orange is either a #16 or 
> #21.  Would this one be okay to use, until I can get a deeper yellow? And 
> what ISO should I set for starters (TTL metering with filter in place)?

On my homepage, you'll find an overview of all possible 
yellow/orange//red/infrared filters from various manufacturers, 
alongside with their Wratten-index:

http://www.a1.nl/phomepag/markerink/irfilter.htm

(and another page listing effective ASA for various films and various 
filters, although the range for EIR is much smaller than for EIR, 
since the range of possible filtration is much larger for the latter:
http://www.a1.nl/phomepag/markerink/filt_asa.htm )










 

--                 
Bye,

Willem-Jan Markerink

      The desire to understand 
is sometimes far less intelligent than
     the inability to understand

<w.j.markerink@xxxxx>
[note: 'a-one' & 'en-el'!]
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