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-   -   stars, a meteor and a plane (http://www.wakeworld.com/forum/showthread.php?t=782660)

dakid 08-13-2010 6:43 AM

stars, a meteor and a plane

wakedad33 08-13-2010 8:51 AM

1 Attachment(s)
Joe, this is all I got, saw lots of them just never where my camera was pointing. Any idea what I'm doing wrong :confused: Focusing?

Tripod & shutter release
20 second expoisure
ISO 1250
Exposure comp 0

alans 08-13-2010 8:59 AM

Much lower ISO 100 or 200 (gets rid of the noise and allows for longer exposure)
Much smaller aperture F8-F11 (Allows for much greater depth of field and alows for longer exposure)
Much longer exposure needed. If you want to see the movement of the earth.

cdhayes2 08-13-2010 9:45 AM

Ok, I'm new to DSLR's. How do I make my Canon T1i take longer than a 30 sec exposure? After cycling through and passing 30 seconds it says bulb? I tried that, but I have to hold the button..?

wakedad33 08-13-2010 9:59 AM

Thanks Alan input, I will try that tonight. I went with 20-25 second exposure to keep from getting the stars trails, looking for just the metor trail.

barry 08-13-2010 10:48 AM

It's slightly out of focus is the only thing you're doing wrong. At 50mm you should be able to pull down 30 second exposures without trails. If you have a wider lens you'll be able to increase the time without showing trails.
is 2.5 as wide as your lens will go?

wakedad33 08-13-2010 11:05 AM

Thanks Barry, I have a nifty fifty 1.8 I can try, what do you think, manual focus set to infinity?

barry 08-13-2010 11:18 AM

That Nifty 50 will do great! Yeah, manual focus, but don't rely on infinity,I found I get my best focus by looking through the viewfinder on the brightest star you can find. I always find critical focus to be slightly before infinity. Open that lens up! :)

alans 08-13-2010 11:22 AM

Awesome tutorial on shooting still stars. And no, you do not want a large aperture.

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wakedad33 08-13-2010 11:42 AM

Wow, 2 intresting prospectives. I think I will bring 2 camera and try both suggestions, Thanks guys:)

barry 08-13-2010 1:51 PM

Alan, can you post some of your work? I'd love to see it. :)

dakid 08-13-2010 2:35 PM

1 Attachment(s)
randy, to me it just looks out of focus. yeah, you could tone down the iso a bit, but other than that, it's cool.

here's one of the shots from the stack above. (keep in mind, this was shot in the city)

15sec exp
iso 320

barry 08-13-2010 7:16 PM

1 Attachment(s)
I hope you don't mind, Randy. :)

wakedad33 08-13-2010 8:02 PM

Not at all, thanks Berry much better. I'm going to go back out tonight and see what I can get.

barry 08-13-2010 8:19 PM

You're welcome, Randy.

Joe, cool shot of the Pleiades.

dakid 08-13-2010 8:26 PM


Originally Posted by alans (Post 1621723)
Much smaller aperture F8-F11 (Allows for much greater depth of field and alows for longer exposure)

isn't that backwards?

scott_a 08-13-2010 10:24 PM

Nope...that's correct. F8 gives more depth of field than f2.8, and since F8 lets in less light you'll need to let light in for a longer duration...

dakid 08-13-2010 11:56 PM

i guess i read that wrong or too fast or whatever. i thought he was saying f8 allows more light in. my bad.

richd 08-15-2010 8:30 AM


What are you shooting all your night shots with?

The backs are just so smooth.

barry 08-15-2010 10:31 AM

I don' t want to speak for Joe, but if you median combine or average when you're stacking it usually gets very buttery like that.

dakid 08-16-2010 1:09 AM

barry's right. on the non-stacked pics, noise removal plugins help.

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