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Star trails

Discuss everything including the optimal equipment, seasons, techniques and tips for capturing excellent photos.

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Re: Star trails

Postby americanhero » Thu Aug 18, 2011 1:20 pm

Matt wrote:Photoshop CS4 and 5 will do stacking quite well.



unfortunately too complicated for me. :cry:
I mostly use Picasa for editing pictures, because it is absolutely easy. I have no idea how to do something with these complicated programs other than auto correct.
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Re: Star trails

Postby gardengirl13 » Thu Dec 22, 2011 2:47 pm

Here are my tries.

http://www.pbase.com/gardengirl13/lost_in_space

I started doing star trails years ago with film and it was much easier! Just set it up open the shutter and hours later go back and you're done. Now with digital the it's issues it's harder to do. You can see I'm getting a bit better then a few years ago. the 60D really seems to do this well.

And americanhero wanna know a secret? Download this- it's free and works great! http://www.markus-enzweiler.de/StarStaX ... l#download

Here are my hints. For plain star photos without the fancy tracking tripods use the highest ISO your camera can handle, open the lens as wide as it'll go and shoot for about 30 sec. Any more then that and the stars will start to move. The longer the lens the shorter the time. At 10mm 30 sec seems to be ok. Some do 25. For trails I set it up at ISO 100, wide open and shoot for 10 min. Problem is when you unlock the shutter and take the next photo it has to be VERY fast or you'll get spacing in between your trails. I do 10 min shots for as long as I want. Then shoot a bunch of dark images. It is important to do this at the time of shooting so the temp of the battery and sensor is the same. Basically just put the cap tightly on the lens and keep the settings (ISO, f/stop, ss) all the same. I only shoot about 4 of these. Some do a lot more. Doing this helps keep the noise down a bit.
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Re: Star trails

Postby americanhero » Tue Jul 10, 2012 4:59 pm

I played with my camera a lot while traveling throughout Utah, some of the results are not too bad

Image
Coyote Gulch Star Trails on a full moon night

Image
Bryce Canyon Trails

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campground Trails

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Salt Creek Canyon Trails
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Re: Star trails

Postby Matt » Wed Jul 11, 2012 11:58 am

Those are amazing. How long were the exposures? What are those lines running counter? Jets?
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Re: Star trails

Postby americanhero » Wed Jul 11, 2012 1:21 pm

Matt wrote:Those are amazing. How long were the exposures? What are those lines running counter? Jets?

All are single exposures of 30 seconds stacked together. I usually set up my camera for 40-55 minutes, so you will get 80-100+ single exposures. The lines are jets, unfortunately there is a lot of air traffic in the Southwest. I wish I could get rid of those
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Re: Star trails

Postby Matt » Wed Jul 11, 2012 5:46 pm

have you tried content aware spot removal in PS6?
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Re: Star trails

Postby americanhero » Wed Jul 11, 2012 5:51 pm

Matt wrote:have you tried content aware spot removal in PS6?


I only have Picasa for post editing... :oops:
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Re: Star trails

Postby Matt » Thu Jul 12, 2012 12:44 am

I have 6 at work. I can try on a higher res copy if you want to see if it would remove them.
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Re: Star trails

Postby hobkyl » Thu Jul 12, 2012 6:01 pm

Superb job Yvonne! I need a free night and a place to go try this out, you put the bug in my ear.
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Re: Star trails

Postby americanhero » Thu Jul 12, 2012 8:05 pm

Matt wrote:I have 6 at work. I can try on a higher res copy if you want to see if it would remove them.


cool!! Will send you a test file after I'm back from my next camping weekend ;)
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