Telescope Reviews: Film planetary photography and registax

In the days of film planetary photography it was an advanced teshnique to print multiple negatives on the same piece of photographic paper in order to diminish grain and get a better picture. As a matter of fact this is very tricky to be done in a classical darkroom and perhaps out of the question for color photographs.
But I had an idea why don't try to combine the old with the new world?
So I took four photos of Jupiter on the same negative then I scanned the print, cropped each image and stacked them with registax. The seeing wasn't good but I was curious to experiment.
Vixen 80mm f/11.4 refractor at f/90, T-Max 100 rated at 64ASA developed in Rodinal. 4 second exposures. At lower right you can see the final result in a slightly bigger scale. Grain has gone.
Why bother with this when a webcam is far more convenient and gives better results? Because it's fun, and amateur astronomy has to be fun!

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Homemade 8" f/4.5 dob
Orange Celestron 8
6" f/8 equatorial newtonian
Vixen 80mm f/11.4 refractor
Vixen A80SS
etx-70
http://starobserver.wordpress.com

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