RE: [APML] Sierra Star Trails Question

["Thomas W. Earle" <twade@bmi.net>]

Allan,

Nice star trails!  Pointing the camera to the north star is still
one of my favorite ways to do astrophotography.  I'm always hoping I
can catch a random bright meteor.  It's a little more difficult to
get a landscape in the photo from my latitude since the North
Celestial Pole is around 45 degrees above the horizon (i.e. it takes
a very wide-angle lens).

The green cast is likely due to either light pollution and/or
reciprocity failure of the film.  Could you see a light dome in the
north caused by a distant large city?  I'm not sure about the
reciprocity characteristics of this film, but there is a chance it
aided in producing the green cast too. 

Wade


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