Re: [APML] california neb

[Dean Jacobsen <deanjacobsen@earthlink.net>]

At 11:48 PM 12/21/2001 -0600, you wrote:
>Thanks Dean.
>Yes the TP was hypered. That's a necessity for TP on deep sky targets. On
>the PPF, I've sent off some hypered PPF to Hallas lab for scanning and Tony
>seemed to think that the older PPF was loosing sensitivity to hypering. It
>(hypered AND unhypered) has also been very grainy. The PPF only shot would
>not have been pretty. The TP made this shot.
>Bobby

Thanks for the response.  What method did you use to combine the TP [as a 
luminance layer I presume] with the color data?  Has someone published an 
article on this dealing specifically with film that I may refer to?

Dean Jacobsen
www.astrophoto.net

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