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TimeLapse

This version was saved 12 years, 8 months ago View current version     Page history
Saved by PBworks
on February 15, 2008 at 12:24:20 pm
 

 

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Higher resolution video on here on Archive.org
Cinepack is full resolution

Long Exposure TimeLapse (65 second exposures)

This is my first try at long exposure timelapse at night.
It was far from a perfect night... but there are moments where you see the stars..
I mostly just wanted to let it run for a night and see how it looked.
I'm using a Canon Powershot A560 that's using CHDK to take 65 second exposures and do the timelapse. This version is using the raw exposure (also thanks to CHDK).
The jpgs, which used auto white balance had a very blue tint to them.
My processing sequence went something like: raw .CRW -> dcraw -> png -> virtualDub
I used a few filters in virtualDub to adjust the levels and the overall color.
Exposure info: 65 seconds, ISO 200, F2.59(according to EXIF)
I left a 60 second delay between shots to let the ccd cool down.


Higher resolution video on here on Archive.org

Cinepack is full resolution
This is the second try a couple nights later. I uploaded both the straight jpg version, and then another where I adjusted the levels and color to try and bring out the stars a little better.

This was an attempt to capture the eclipse on 8/28/2007. I used CHDK with my camera mounted on an orion Atlas mount.

I think the eclipse was at around 3am, and I had to work the next day, so I wanted to try and get it to capture the whole sequence while I slept...  It kind of worked..  the main problem was that I wanted to use auto-exposure so that it wouldn't be completely over-exposed before and after totality, but still have a nice exposure during totality...  I had to use the spot exposure setting in order to get good results, but that meant that the moon had to stay inside the little box in the center of the image. You can see a couple of places where it moved out of the spot area and it got really bright.  I think my batteries died, or my tracking was off, so I didn't actually get much totality.

 

In the CHDK forums, there was some talk of dynamically setting the exposure inside of a uBasic script.. I might try to get that working for the upcoming eclipse.

 
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Construction TimeLapse

TimeLapse of some big ass tractors laying sewer pipe in the road in front of my barn. I set my Powershot S3 IS up looking out of my barn and as they dug away. They laid the pipe about 25 feet down... Noisy as hell, and they start at about 6am in the morning.. but it's kind of cool to watch how they pull it off.. 3 scoops is all it takes to fill up one of those trucks.

Burning the Leaves

It was a nice autumn day last year and I had a big pile of leaves to burn. It was pretty smoky and  kind of a bastard to start..
A little ventilation with the leaf blower, about a gallon and a half of old bad gas and some wood to provide some real fuel and it got going pretty well...

The clouds are kind of cool as they mutate and roll by...
Then there's an evening calm where the smoke lays on the ground like mist..

 

 

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