Re: IR filters.....

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

On 20 Mar 98 at 0:31, Hellaynea wrote:

> 
> 
> Rolland:
> 
> Thanks for all of that great info!  I was wondering....I am about to go ahead
> and buy the opaque filter for shooting infrared.........I know the opaque is
> #87.......i found a chart that shows how much of the infrared light is
> transmitted.....87b= 940nm  37c=850nm......what is your experience with these
> filters?  I am ordering the filters from B+H.....they advertise a filter for
> infrared with the following numbers:  092,093,099,489.....do you know if these
> are the same as the 87 series?  In the catalog I don't see Tiffen....Heliopan
> or Hoya list them.....I know there is a hoyaR720......is this equal to an
> opaque87?   What about Cokin?  Should I even get one?  I bought an infrared
> book by Laurie White and she says to just stick with a deep red!  Then what's
> the point of the opaque filter?
> 
> Please!............any input would be greatly appreciated!!!

On my homepage I have a rather extensive listing of IR/UV filters and
equivalents of Wratten, Schott, B+W, Heliopan, Hoya and Cokin. 
Print it out and keep it under your pillow....:-))

URL see in the admin footer below!


- -- 
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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