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Old 11-07-2010   #11
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Wow, I think I'm going to have to plan a camping trip so that I can try this.

Problem is, I'm a 5 and you're a 1.

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Old 11-07-2010   #12
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lol, i live in a 7 zone, but there is a 1 zone about 90 miles from my house, which is where i go.

google up "Dark sky finder" and it will mshow you good spots around where you live, oiut east it seems pretty lit up though
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Old 11-07-2010   #13
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According to "dark sky finder" I would need to go to Site 1225: Sean's Home. I hope Sean doesn't mind me camping out in his back yard.
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Old 11-07-2010   #14
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Results are in! Looks good. I had to guestimate on Polaris because i couldnt see it due to clouds, used a compas and set the latitude, seems to work well
No NR, exposure adjusted to bring out the stars in Camera Raw.
Each was a 4 minute exposure, 24mm
Mount turned OFF

mount turned ON
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Old 11-07-2010   #15
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i'm impressed!...and living vicariously through you. GREAT JOB-some K for you!
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Old 11-07-2010   #16
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Went here Dark Sky Finder and it said where I go is a dark green area. Guess thats good. I need to get a new battery for my trigger (or my camera isnt liking it). I had it in that case, and I think it was held "on".
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Old 11-07-2010   #17
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Thank you Javagirl!

Another set of test shots

8 Minute exposure, ISO 200 50mm F/5.6
with 8 minutes i did get some pill shaped stars, im going to blame this in improper setup, with the light polution it is very hard to get this lined up properly, none the less thi is twice the duration of the last exposures at double the focal length. Also this mount seems to need adjustment when you change the lenses, i think due to the difference in weight of the 24-70 2.8 vs the 50mm 1.8. SO it will reuire a bit of attention, but so far im more than thrilled with my results, cant wait to get a nice clear night to drive out to BFE and take some dark sky shots, where im at i can only se 5-6 stars in the area i shot.

Mount turned off

Mount ON
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Old 11-07-2010   #18
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Deffinitely going to have to head out there this week. Try some low iso, long exposures.
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Old 11-07-2010   #19
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Whooo hoooo!!! Finally! An astrophotography thread!

I have not done this much, and with a clear night, I wandered outside with an almost empty battery (don't do this), my camera, remote shutter release, and tripod.

First obstacle: seeing in the dark. It is a good idea to know your camera's layout before trying this at home. Since my camera is brand new, I fumbled around A LOT.

Second, try to convince the husband to turn off the TV. Failing that, draw the drapes as best you can.

Third, find a low light pollution area. My nearest large city is about 20 miles away. Should be fine, right?

Fourth, watch out for roof obstacles. Hard to do with a deck.

Fifth, make sure you don't have a hot tub on the deck. It will always come on while you are shooting.

Sixth, do this with a fully charged battery. Because after finally figuring out your focus, a partially charged one will pick that time to fail.

3rd picture is 30sec, f/8, 400 ISO and a handheld spotlight to illuminate the trees during the exposure.
Attached Images
File Type: jpg astro2.jpg (145.7 KB, 760 views)
File Type: jpg astro3.jpg (141.0 KB, 761 views)
File Type: jpg astro4.jpg (44.0 KB, 757 views)
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Old 11-08-2010   #20
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Very nice capture of the Orion constellation


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