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Roberto Arcari Farinetti
{K:209486} 3/19/2005
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thank you my friend.. and also great suggestion of taras!
have a wonderful wwek end
!roby
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Stan Pustylnik
{K:6768} 3/19/2005
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Taras, thank you for your comment, advice and editing. I'll look at your "barn door tracker" idea. Must be interesting to build it by itself..
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Stan Pustylnik
{K:6768} 3/19/2005
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Roberto, your image is great! Amazing how your telescope didn't create "star" effect from street lamps! Night sky is so beautiful and amazing that I try to shot it as much as I can, this velvia experiment worked very well.
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Taras R. Hnatyshyn
{K:4055} 3/19/2005
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Stan,
There are techniques to process out the vignetting; see how I edited your image (I flipped it as well). Also, you can get a longer exposure using a barn door tracker, which is easy to build. Then you don't have to worry about trailing. I feel that Provia 400 or Ektachrome 200 are better films for astrophotography. This month's Sky and Telescope concentrates on the deep sky objects in the bowl of the dipper.
Taras
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Subtraction of median filtered copy |
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Maria José Barres
{K:11276} 3/18/2005
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Nice work!!!!!!!!
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Roberto Arcari Farinetti
{K:209486} 3/18/2005
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I have recovered the deep sky with the contrast...
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et voilà.. |
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Roberto Arcari Farinetti
{K:209486} 3/18/2005
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Hi stan..
is one turned over resumption, with the telescope, beautiful and big the "Ursa Major"..
nice the sugestion in your comment..
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et voilà.. |
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Teunis Haveman
{K:53426} 3/18/2005
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Stan, Great Hehal
Good sky and many stars
Teunis
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Stan Pustylnik
{K:6768} 3/18/2005
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I used f/1.7 apperture setting of lens to catch max amount of stars and 30 sec exposure. As result I got strong vigneting (dark areas at the corners of image) but amount of stars was so awesome! I'm posing compressed original with highlighted area you are looking at.
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