Re: Filter question....

[George L Smyth <glsmyth@xxxxxxxxx>]

--- Richard Butler <rbutler@xxxxxxxxxxxxxx> wrote:
> Unless it's a very unusual filter, whether it's a #25 or #29 red (red or 
> deep/dark red), it should work very well with both IR and B&W films.  If 
> it's close to a #29 red, a blue sky will be virtually black.

Actually, this has to do with the position of the sun when shot.  Best is to
shoot away from the sun, where the sky shows the deepest blue.  I have seen
very little difference between the #25 and #29 filter, so I save the speed and
shoot with a #25 when not going opaque.

george

=====
Handmade Photographic Images
http://members.home.net/hmpi/

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