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03-08-2010, 05:53 AM   #1
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Star Trail Photography

What gear is needed for a star trail?
at first i thought it was a bulb mode w/ some cables
but ive notice some had only 30sec exposure combine i think using photoshop
anyone here have done this and i would like to hear what kind of methods did you use

heres some link
Backyard Star Trails on Flickr - Photo Sharing!
Star Trails 8 on Flickr - Photo Sharing!

03-08-2010, 12:27 PM   #2
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QuoteOriginally posted by rustynail925 Quote
What gear is needed for a star trail?
A camera with a B(ulb) setting and a wired remote cable with a latch. That's all.

star trail photography - Google Search
03-08-2010, 12:50 PM   #3
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You can use 30 second exposures. Then combine with Star Trails software.
Startrails application
This is a get around for the DFS in the newer cameras.
03-08-2010, 02:15 PM   #4
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QuoteOriginally posted by wildlifephotog Quote
You can use 30 second exposures. Then combine with Star Trails software.
Startrails application
This is a get around for the DFS in the newer cameras.
Plus it gives you better control for foreground lighting and omitting any lights from airplanes that happen to fly thru your shot.

re-t

03-08-2010, 08:42 PM   #5
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So if you are using a remote cable can you on B mode can you just leave it there for like 30mins and be back to turn it off?
If you are using the 30sec exp you have to be there to set it up every 30s? Am i correct?
03-08-2010, 10:26 PM   #6
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bulb mode works great. This is my biggest complaint about my current setup. K20d with remote (the one that fits in the battery grip) you have to hold the button down for as long as you want the exposure to be. Old k1000 you could use a mechanical shutter cable that would let you screw down and on my friends nikon you press once to start and again to stop exposure.

One workaround I found was to roll up a little ball of foil and depress the button with it, using one of those bread twist ties to hold it down. You can then use the twist tie to hold the remote to the camera =)
03-09-2010, 05:42 AM   #7
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Put the camera in continuous shootong mode, with a 30 second exposure time. Lock the cable remote down and let it shoot till you have as many as you need.

03-09-2010, 05:57 AM   #8
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At dealextreme you can buy a cabled remote with a locking "shutter" position for a few dollars. They work great, and let you start your acquisition, walk away, then come back after many minutes.

A few pieces of advice :

1-get a sturdy tripod, and do not extend the legs and "neck" (dunno the word in English for that part) more than you have to

2-set an aperture that will give you a nice DOF, ideally set a correct hyperfocal distance

3-place an object in the foreground, it will give you much better looking images

4-go to a place outside a city, where the ground is not vibrating too much (not a wooden deck, for instance)

5-carry a black cardboard with you. Place it in front of the lens before opening the shutter and before shosing it, to avoid creating camera motion blur

6-disable SR

7-walk away slowly

Also, remember that the camera will take a dark frame exposed with the same duration as your actual shot, so the camera might be inoperable for many minutes depending on the duration of your exposure.
03-09-2010, 06:00 AM   #9
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If you don't mind wired, this works just fine REMOTE Shutter Release for Pentax Super/K100D/K110D NEW - eBay (item 190360309403 end time Mar-23-10 17:44:58 PDT). If you still want wireless, these work well (better than the Pentax IMO) Wireless Remote Shutter Release for Canon 500D Pentax - eBay (item 270537412463 end time Mar-27-10 03:03:45 PDT).
03-09-2010, 07:01 AM   #10
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QuoteOriginally posted by wildlifephotog Quote
Put the camera in continuous shootong mode, with a 30 second exposure time. Lock the cable remote down and let it shoot till you have as many as you need.
what is a cable remote?
03-09-2010, 07:09 AM   #11
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Nevermind that question..
thx! any recommendation for a k200d at amazon?
03-09-2010, 07:13 AM   #12
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For the money, you're far better off with Ebay or DealExtreme. Same exact items, half the price. http://www.dealextreme.com/search.dx/search.pentax%20remote
03-09-2010, 07:28 AM   #13
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Thx which one in particular?
I have the remote f w/c is wireless but when i tried doing star trail it couldnt hold on. after about 15sec the shutter would close and its difficult pressing it
03-09-2010, 07:36 AM   #14
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I linked to both a wired and wireless that will lock on Ebay previously.
03-09-2010, 07:38 AM   #15
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Is this it ? DealExtreme: $5.63 JY Bulb Setting Shutter Switch for Canon / Contax / Pentax / Samsung Digital Camera
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