Archived posting to the Leica Users Group, 1997/02/20

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Subject: Re: [Douglas.McLernon@tcd.ie: pin holes and news groups]
From: "Peter J. Fasi" <ar487@detroit.freenet.org>
Date: Thu, 20 Feb 1997 09:30:26 -0800

Charles E. Love, Jr. wrote:
> 
> At 08:19 PM 2/19/97 -0500, you wrote:
> 
> > My results
> >suffered from pronounced color shifts towards green, and it wasn't
> >just the lighting.  So I wonder why that wouldn't happen with a long
> >exposure in a pinhole camera.
> >
> >I've seen some people say Velvia doesn't suffer from reciprocity
> >failure (see http://atchison.net/gallery/gallery2.htm), but more
> >people seem to report the same effects I ran into in exposures of
> >about 10 seconds.
> >
> I use Velvia as my main film, and it does shift a little towards green, but
> from my point of view it's still in the acceptable range, even with
> exposures as long as a minute.  It certainly shifts less than good old
> Kodachrome 64 used to do!--Charlie
> Charles E. Love, Jr.
> CEL14@CORNELL.EDU
A possible remedy would be the use of a magenta filter on the lens.