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Hydroelectic Station, Northern California


Posted by miker on Thu Jan 24, 2019 6:05 pm

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a6500 Rokinon 12mm 11 30 second shots at f2, tracked with barn door tracker, stacked with Sequator

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by Cynthia Crawford on Thu Jan 24, 2019 8:10 pm
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Sounds like a sophisticated process about which I know nothing (!), but the result is certainly spectacular. I wonder about including the station- is it a commentary on the juxtaposition of nature and man-made power? The very dark portion puzzles me too- is it a tree? Not a criticism, mind you- just curious. Love seeing all the stars!
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by miker on Thu Jan 24, 2019 9:06 pm
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Thanks. Yes, it's a tree but probably better cropped out. The station is included just as an item of interest.
 

by Cynthia Crawford on Thu Jan 24, 2019 9:19 pm
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miker wrote:
Thanks.  Yes, it's a tree but probably better cropped out.  The station is included just as an item of interest.

I'm not sure the tree is a problem-perhaps it looks overly large compared to the other trees though. What if you just cropped the whole picture a bit from the top where the tree tends to look more like part of the sky?
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by Carol Clarke on Fri Jan 25, 2019 1:04 pm
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The hydroelectric station does add an interesting structure to the dark base of the scene, Mike, and I like the large tree as presented - especially when you click on the image for the uncompressed view. The night sky with its myriad of stars is beautifully captured, and the scene as a whole is quite stunning!

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by miker on Fri Jan 25, 2019 1:15 pm
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Thank you.
 

by John Labrenz on Fri Jan 25, 2019 7:55 pm
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Nice job on the stars
Did you build your own barn door tracker...or buy one?
 

by miker on Fri Jan 25, 2019 11:50 pm
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I bought a nyx tracker kit for $79.00 and put it together in an hour. It seems to work pretty well but I was out this evening and shooting very high up in the sky was difficult depending on the direction I wanted the camera to point. I've had success with the 12mm Rokinon but tried a couple of times to use a 90mm lens and it's not tracking very well. I think I'm having trouble with the alignment of the tracker to Polaris. All in all it works but I'd rather have a regular star tracker starting at about $300.00.
 

by John Labrenz on Sat Jan 26, 2019 2:06 am
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Ok.
Make sure that you are not aligning to Polaris!
You need to align to the NCP for utmost accuracy....see here.
https://barn-door-tracker.co.uk/
 

by miker on Sat Jan 26, 2019 10:20 am
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This is a interesting site with a lot of good info. It really is enjoyable although I'm new at astrophotography. I can see that using a wide lens is a lot more forgiving in the results than a long lens. thanks!
 

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