Bristol Harbour Lock Gates

These are the final lock gates out of Bristol Floating Harbour- to the right is the Avon, a river with a very great tidal range that made the docks hard to make productive use of, until there were lock gates installed, to maintain the water level in the docks at all times. These were in the final stages of having the gates converted to run on an oil hydraulic system, but were managing to handle traffic nonetheless.

This was shot using a point-n-shoot Canon (A530) using the CHDK to work as an intervalometer, taking shots about once every 2 seconds, and stitched together into a video with a combination of Image Magick and ffmpeg.

Category:

Science & Technology

Tags:

• chdk
• ffmpeg
• bristol
• lock
• gates
• avon
• docks

[fidgejufter]

@LyricalElastic Problem is partly that I can only get a maximum 2Gb card in that camera (won't take SDHC), meaning that there's only so many frames, and ergo so many seconds of resultant video. Partly that I can't slow it down by taking pictures faster- one every 2 seconds is the best I can do. For short time periods, I'd have been just as good off with speeding up real video footage. Will do that next time.

[LyricalElastic]

Would have been nice to see it fill up again. Hard to settle when the time bar is moving that quickly, no?