I'm trying to test out my camera with exposures but every time I finish it the picture comes up as all white. What am I doing wrong I set it for 60 seconds on some water?
Also for night sky exposures how long would a good exposure take?
It means you are letting too much light in. Close up the aperture as tight as it goes, and if that doesn't do it enough, get an ND filter (makes the light darker without changing colour or contrast).
Yeah, Salmon pretty much nailed it there. If there's too much light even with your most closed down aperture, ND is the next step.
With regards to your question about night sky exposures, it depends if you're doing star trails or just a normal sky exposure.
I would say for star trails, a good one would probably take maybe 20 minutes? (correct me if I'm wrong)
As for normal sky exposures, I would say maybe 6-7 minutes. (again, correct me if I'm wrong.)
Hope this helped OP :)
It did thanks, but one more thing, I can't seem to take an exposure without using the flash, hoe do I disable it because it makes my photo all orange instead of black.
[QUOTE=Duckie;35271419]Yeah, Salmon pretty much nailed it there. If there's too much light even with your most closed down aperture, ND is the next step.
With regards to your question about night sky exposures, it depends if you're doing star trails or just a normal sky exposure.
I would say for star trails, a good one would probably take maybe 20 minutes? (correct me if I'm wrong)
[B]As for normal sky exposures, I would say maybe 6-7 minutes. (again, correct me if I'm wrong.)[/B]
Hope this helped OP :)[/QUOTE]
When I've taken pics of stars, anything over 30 seconds gives a notable star trail.
[img]http://img714.imageshack.us/img714/6871/20120324153445.png[/img]
this is what I got with the maximum 15 seconds on the base canon exposure, with chdk I can go longer but I can't do an exposure without flash, how do I disable the flash on exposures?
[QUOTE=booster;35275362]When I've taken pics of stars, anything over 30 seconds gives a notable star trail.[/QUOTE]
Ah. I only did one star trail exposure about a year ago, and I got a good image then. Where I live there isn't many clear nights.
Desolate, are you shooting with an external flash?
[QUOTE=Duckie;35302859]Ah. I only did one star trail exposure about a year ago, and I got a good image then. Where I live there isn't many clear nights.
Desolate, are you shooting with an external flash?[/QUOTE]
No, CHDK is a program for Point and Shoot Digital Cameras, I doubt they have external flashes for them.
[QUOTE=Duckie;35271419]Yeah, Salmon pretty much nailed it there. If there's too much light even with your most closed down aperture, ND is the next step.
With regards to your question about night sky exposures, it depends if you're doing star trails or just a normal sky exposure.
I would say for star trails, a good one would probably take maybe 20 minutes? (correct me if I'm wrong)
As for normal sky exposures, I would say maybe 6-7 minutes. (again, correct me if I'm wrong.)
Hope this helped OP :)[/QUOTE]
What about taking multiple photos at 3-4 minute intervals and then compiling them together? I heard this helps reduce noise that comes from long exposures.
I tend to have that problem when I do any night photos. If anyone has any tips I'm all ears.
[img]http://img442.imageshack.us/img442/1476/20120326211642.png[/img]
This is the best exposure I can get with covering up the flash, closing the shutter doesn't allow enough light to get in, 60 secs with a tiny star trail
[QUOTE=DesolateGrun;35310613][img]http://img442.imageshack.us/img442/1476/20120326211642.png[/img]
This is the best exposure I can get with covering up the flash, closing the shutter doesn't allow enough light to get in, 60 secs with a tiny star trail[/QUOTE]
Maximize the ISO, and 10 sec. should be enough.
But the problem might be light pollution. If you wanna get the best star scapes, you wanna go to a place with a good night sky.
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