Re: Ilford SFX 120 & personnal info

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

On  8 Jan 99 at 11:08, Cameron Shaw wrote:

> The nearest you can get to an infrared image and SFX200 film is by using
> a Hoya R72 filter.
> However it is too dark to use manual focus but some cameras I've tried
> will auto focus through the R72 filter.

You'd be surprised to know that my EOS even focus decently through an 
#87C filter....;-))
However, focus accuracy in terms of IR-correction is a confusing 
topic....Andy Davidhazy and I once compared some test results, and 
while his lens focused in the right direction, one of mine went the 
other way. Don't ask, I don't know why, nor have I seen more 
conclusive experiments....;-))

 

--                 
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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