Re: HIE & filtering.

[Daniel Flather <pincher@xxxxxxxxxxxxxxx>]

I set my EI at 400 and meter through the filter and I'm thinking about
upping my EI, I find my neg a little heavy.  I develop in ID11 stock for
8.5 min.

Nice site I bookmarked it.
-Daniel Flather
Canada


Jaap Los wrote:
> 
> Daniel,
> The #29 filter allows some visible light to pass whereas the 89b filter cuts
> almost any visible light. So the IR effects of the 89b filter will be
> theoretically stronger. However I can tell you from my own experience that
> you can hardly notice any difference! Also the #29 filter is easier to
> handle (you can look through the viewfinder of a reflexcamera.). Depending
> how you develop your film, the ISO rating for the 89b filter should be
> lower. In my case ISO 50 as against ISO 100 for the #29 filter. You can also
> consider to use a #25 red filter which does the job excellently. Here I
> expose for ISO 200. Look at my website (address in footer below) for more
> details. Success!
> Greetings,
> Jaap Los
> The Netherlands
> 
> See also my infrared photography homepage at:
> http://home.wxs.nl/~losjb/hometest.html
> with lots of infrared photographs, some of them lith-printed.
> 
> See alo my website
> http://home.wxs.nl/~losjb/JBLhomepage.html
> for those who are interested in company matters
> ----- Original Message -----
> From: Daniel Flather <pincher@xxxxxxxxxxxxxxx>
> To: <infrared@xxxxx>
> Sent: Friday, January 19, 2001 6:41 PM
> Subject: HIE & filtering.
> 
> > This might be a simple question but I will post it anyway.
> >
> > After cruising B&H in the filter section I was wondering, when using HIE
> > I use a #29 red filter (B+W) or a 87c gel BTFR.  How much of a
> > difference is there between the filter I use(#29) and a #89b red?
> >
> > -Daniel Flather
> > Canada.
> > *
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