
September 7th, 2012, 12:48 PM
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Mu-43 Top Veteran
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Join Date: May 2012
Location: Portland, OR
Posts: 908
Real Name: Joe danska's Gallery
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Quote:
Originally Posted by jloden
Some nice shots here... I tried doing star shots the other night and had a heck of a hard time getting it focused and/or getting anything interesting other than a black sky with dots. If anyone would like to share a basic primer on astrophotography I for one would be interested.
I'm not sure what you all mean about stacking exposures - I gather it's using an app to combine long exposure photos together, but I'm not familiar with the process and/or how it would differ from something like HDR (which I know from experience didn't work well with moon photos).
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You can download deep sky stacker for free which is the program F1L1P turned me onto. Basically you take identical, sequential exposures and then combine then to reduce the noise level (increase blacks) in your star-scapes.
After making a thread on here and then researching for a while on the internet I found that the key for great star shots is having the widest angle and aperture lens that you can get (in your case the 12/2). That way you can increase your exposure time for as long as possible without getting star trails (based on rule of 600; 600/Focal Length in FF terms, will give you the longest time you can expose without seeing trails).
Unless you can get to complete wilderness I think the stacking method seems like the only way to go. Timing the moon cycle and making sure it has been set for a while is also critical. I'm mainly interested in showing interesting foreground stuff with the Milky Way overhead so I'll be planning out some trips probably next summer to try and get some of these types of shots. I'm not sure how much of the Milky Way is really in view in the winter time.
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