night sky timelapse video with shutter speed override - page 2 - Script Writing - CHDK Forum
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night sky timelapse video with shutter speed override

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Offline mx3

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Re: night sky timelapse video with shutter speed override
« Reply #10 on: 09 / January / 2008, 08:31:03 »
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can someone tell me how to setup my camera?
weather forecast tells me 11-13 jan will be cloudy

i can't believe no one can tell me what I m to do
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Offline barberofcivil

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Re: night sky timelapse video with shutter speed override
« Reply #11 on: 09 / January / 2008, 09:24:28 »
Quote from: mx3 on 09 / January / 2008, 08:31:03
can someone tell me how to setup my camera?
weather forecast tells me 11-13 jan will be cloudy

i can't believe no one can tell me what I m to do

Set the shutter speed in the script to be sure you have the one you want.
Depending on the build you are using, the syntax may be different.

For AllBEst use:
set_tv96_direct X
where X is the corresponding *96 value for the shutter speed.  For 65s X=-576.

Or you could try my script:
http://chdk.wikia.com/wiki/UBASIC/Scripts:_Shutter_Speed_Stack_%28AllBest_build%29

Settings:
a=3  (1/3EV sizing, doesn't really matter for constant shutter speeds)
b=6  (+6EV = 65s shutter speed)
c=0
d=X (set the desired number of shots)
e=0 (step size = 0, shutter speed will stay the same)
f=0 (if you want a start delay, set the number of seconds
g=0 (if you want a delay between shots, set the number of seconds)

If you want to do a large number of shots, it can be difficult to manually change value d (imagine trying to get to 1000 shots...), so instead set the default in the script to the number you want before installing it (@default d X)

-tgq



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Offline mx3

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Re: night sky timelapse video with shutter speed override
« Reply #12 on: 09 / January / 2008, 09:42:11 »
thank you
I will try it today
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Offline mx3

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Re: night sky timelapse video with shutter speed override
« Reply #13 on: 09 / January / 2008, 23:49:08 »
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Offline barberofcivil

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Re: night sky timelapse video with shutter speed override
« Reply #14 on: 10 / January / 2008, 00:24:36 »
Quote from: mx3 on 09 / January / 2008, 23:49:08
one more mx3_20080109.avi - 40.34MB


Looks pretty cool!  My favourite part is the sun glare on the yellow dump truck at ~1:19.
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Offline seej

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Re: night sky timelapse video with shutter speed override
« Reply #15 on: 13 / January / 2008, 03:00:04 »
I'm pretty sure it takes hours' long exposures to get those, "spinning stars" shots.

I just shot my first timelapse with the CHDK scripts today! Great fun. So much easier than other intervelometers!

seej
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Offline e2b

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Re: night sky timelapse video with shutter speed override
« Reply #16 on: 13 / January / 2008, 04:57:42 »
Quote from: mx3 on 09 / January / 2008, 23:49:08
one more mx3_20080109.avi - 40.34MB


What software is currently preferred for making timelapse movies? A few months ago I saw a post that recommended 'JPGVideo' (free).
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Offline a710is

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Re: night sky timelapse video with shutter speed override
« Reply #17 on: 13 / January / 2008, 06:03:21 »
Quote from: mx3 on 09 / January / 2008, 23:49:08
one more mx3_20080109.avi - 40.34MB


well, I guess you'll have a pretty good subject for timelapse video for some time, won't you :) .
what are they building?
we've got those ugly gray apartment complexes around here as well :( . lucky for you they may get masked by a nicer building :)
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Offline philip_v

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Re: night sky timelapse video with shutter speed override
« Reply #18 on: 14 / January / 2008, 09:12:46 »
Quote from: seej on 13 / January / 2008, 03:00:04
I just shot my first timelapse with the CHDK scripts today! Great fun. So much easier than other intervelometers!

which particular script did you use? thank you.
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Offline mx3

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Re: night sky timelapse video with shutter speed override
« Reply #19 on: 14 / January / 2008, 09:31:52 »
Quote from: a710is on 13 / January / 2008, 06:03:21
well, I guess you'll have a pretty good subject for timelapse video for some time, won't you :) .
what are they building?
it seems they are building living apartments
I think it will be 9 or 16 floors at least
so it will take a lot of time to accomplish it

I will setup my cam sometimes to record theirs progress

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