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Digital BW, The Print

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Message

RE: [Digital BW] digital IR conversion

2005-06-02 by Paul D. DeRocco

> From: koloshor
>
> Ray Fraser. He hangs around the digital photography forum over at
> photo.net.
>
> He's scraped them off (doing enormous damage) but has finally managed
> to successfully disolve one, just this week.

That's good news. I'll have to check him out.

> Use a Wratten 87 (Hoya RM90), instead of that Wratten 89B (Hoya R72)
> of yours, and you'll see true IR monochrome.

Is that a 900nm cutoff filter? I would expect longer exposure times with
that. With the R72, I can barely hand-hold my DiMage 7 in bright sunlight.
Not that I'm not willing to try it.

--

Ciao,               Paul D. DeRocco
Paul                mailto:pderocco@...

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