Startrails -- Astronomy & Celestial in photography-on-the.net forums

JaredBush

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245 posts
Joined Oct 2009
Location: Depends on the time of year

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Oct 04, 2009 04:19 | #1

Here are my first attempts at startrials... a litle blurry.

IMAGE: http://farm3.static.flickr.com/2651/3979739008_b8e4ceb1b9_o.jpg

IMAGE: http://farm3.static.flickr.com/2607/3979739052_a4ff769d51_o.jpg

IMAGE: http://farm3.static.flickr.com/2522/3978978151_aa3bbc271a_o.jpg

And the dipper...

IMAGE: http://farm3.static.flickr.com/2579/3979739084_8ba6b402bf_o.jpg

Canon 7D (Gripped) - Canon EF 24-70mm f/2.8 L USM - Canon EF 100-400mm f4.5-5.6 L IS USM - Sigma 50mm f/1.4 EX DG HSM
Sigma 10-20mm F4-5.6 EX DC HSM - Tamron SP 90mm f/2.8 Di Macro - Canon Speedlite 430EX II
Calumet Genesis 400wt Lighting Kit - Manfrotto Tripod/Velbon Monopod - Skywatcher 8" SCT

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VIGER

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425 posts
Joined Sep 2009
Location: Canada and Europe

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Oct 04, 2009 08:01 | #2

Hi

You're fist one is the best to my eyes. You're pointing to a dark sky.

For focus use an elastic to prevent lens crawl if using a zoom. For focus you can built yourselft a hartman mask at the size of your lens for cents....

Michel
Perception is reality
Canon 7D. - 5DmkII . 20D IR 10D - Canon 10-22mm - Canon 17-40mm L. 50mm 100mm /100mm macro , 200mm L ,70-200mm L Canon 400mm L - Takahahsi Mewlon 210. SkyWatcher 120ED

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Michael_B

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817 posts
Joined Sep 2009

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Oct 04, 2009 10:16 | #3

The larger your aperture, the fuzzier your trails look, try f/8

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50D, 18-55 IS, 70-200 f4L[COLOR=black], 430EX II, BG-E2N, 200-400 IS USM L w/1.4x..thats right, getting ready.

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RadAL

Cream of the Crop

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Joined Oct 2005
Location: Spanish Fort, AL

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Oct 05, 2009 01:31 | #4

3rd is the best, IMO.

Equipment: Canon PowerShot A650IS (semi retired) and Canon Powershot G10 (primary) and Rebel XT 350D w/18-55mm kit lens and Quanterey 18-200mm-- www.youtube.com/alexander1485 (has links to some of my pictures on the main page)

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Adrena1in

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1,703 posts
Joined Aug 2007
Location: Winchester, Hampshire, UK.

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Oct 05, 2009 02:49 | #5

xs5875 wrote in post #8758019

The larger your aperture, the fuzzier your trails look, try f/8

They're only fuzzy because they're out of focus. Not a big problem with trails I don't think, but I'd always set my aperture wide open and then only stop it down a couple. Close the aperture too much and you won't capture all the darker stars. Just my 2p.

Canon EOS 450D, Sigma 18-200mm, Canon 50mm f/2.5 Macro, 2x TC, Revelation 12" f/5 Dobsonian, Mintron PD2285-EX webcam.

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