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corsec67 (627446)

corsec67
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http://phot.ogra.ph/
AOL IM: corsec67 (Add Buddy, Send Message)

Check out my Time-Lapse photography project: http://phot.ogra.ph/ [phot.ogra.ph] And videos from those cameras available here [vimeo.com]

Journal of corsec67 (627446)

1.3E6 to 1 Time Lapse

Saturday March 15, @01:35AM
User Journal
I have already talked about my long term time-lapse project, but now almost 6 months later, I have... 14 seconds of video.

I chose 22:00 UTC (4PM during "daylight saving[sic] time") for my latest video which is August 2007 through March 2008.

It took 217 days to make that video, and the output is 14 seconds at 15 fps. I think the effect is pretty cool, especially with the tiny tree "dancing" in the snow.

Here is what the camera that made that video looks like, and here is a high quality picture of what the camera can see

My other camera had problems in November, so it will be about 4 more months before I can get a useful picture from that camera.

Reflections on this project: the amount of light from day to day is very variable, with clouds and other atmospheric disturbances meaning that there is a "flicker" to the movie. But, without clouds there wouldn't be that cool snow to fall and melt. Spring might be really cool with the grass going green and then brown in summer. The 6mm f/1.8(fixed) lens isn't very good at this, I would like to stop down to about f/4 or so to prevent those blown highlights during the day. My other camera that is outside has major problems with freezing and changing the focus/focal length of the lens due to the thermal expansion of the housings. The Tamron 2.8-12 f/1.4 zoom that I originally had was horrible at this because it is a varifocal design, but the Pentax 12mm f/1.2 is a bit better.

Because of this project I know quite a bit about wifi and making it stable, as trying to send data over a failing wifi link does bad things. Directional antennas, power adjustments, using Tomato on my routers, singal losses over cables, and ping all are useful in keeping the packets going smoothly.

Ubuntu Rocks

Wednesday February 06, @05:45PM
User Journal
I have a HP dv2000t that I got for running Linux. I made sure all of the hardware was supported in Linux easily, with the Intel wifi card, Intel integrated graphics, etc...

I originally installed Gentoo, and after the 3 days of compiling my system, it worked fairly well. Getting wifi and the 1280x800 screen to work took a bit of configuration, but no big problems.

One year later, I accidentally upgraded libexpat while trying to compile Wine, and promptly broke almost everything that was installed.

I tried to fix it, and then decided to install Ubuntu. Aside from some problems burning the CDs, it booted up quickly and recognized everything I needed, including the screen resolution, wifi, the trackpad and scrolling zone, etc... Plus, no need to spend a week compiling everything and then configuring and installing the kernel.

One thing I always do when I set up a Linux box is to make /home a separate partition, so that I can easily swap out the operating system when it gets really messed up.

Gentoo is good if your goal is to learn Linux, Ubuntu is good if your goal is to use Linux.

Pure electric voting is as reliable as the space it occupies

Tuesday January 08, @12:54AM
User Journal
One thing I expected around the 2004 election was a virus/worm that randomly changed the values in Access databases. Don't change the schema, don't delete rows, just change the values that was in there. Not changing the schema and not deleting stuff would make it relatively unnoticeable for as long as possible.

If it used a 0-day exploit, and had a way to get through NATs (piggy back on a website request or something), then you couldn't trust any tallies or votes done on anything that touched the internet.

Imagine the havoc that would ensue if it was found out the next day that any elections that were voted on using electronic voting machines were void, and had to be done again? that would make 2000 seem like a small problem.

Too many people think "the computer said X, and computers can't lie" forget that computers get most of their information from humans, and if a human says they don't lie, they are lying.

DRM-Free Upconverting DVD player

Friday December 07, @07:57PM
User Journal
When I got my 720p LCD TV, I went looking for a new DVD player to go with it. I wanted: 720p over component video, and if possible as little DRM as possible. I found that no players sold in the US were allowed to do anything over 480p over component video if the disc had macrovision. However, Helios Labs, with their North American office in Canada, was selling the h2000 and the h4000. They both are region-free, up-converting (720p/1080i for the h2000 and 1080p for the h4000) over Component, VGA, and of course HDMI. The good news is that the HDMI port doesn't have any HDCP, so there aren't any compatibility issues with TVs.

The best feature, which I have quite come to love: Both players ignore the User operation prohibition flag, so I can skip through almost any "FBI Warning" or other logo screens, and get to the movie faster. Imagine that, something that actually does what you want, and doesn't cater to the MAFIAA.

I like my H2000 so much that I am not going to get a Blu-Ray or HD-DVD player until Helios Labs makes one.

Time-Lapse Photography Project

Wednesday October 10 2007, @12:36PM
User Journal
I set up a couple of webcams, one in my office, and one on a pole near my house. My initial idea was to take the picture from noon every day for a year and make that in to a very long-term time-lapse movie. To do that, I save the picture from both webcams every 5 min, and then upload it to my websites every half-hour, using a little cron script written in ruby.

As it turns out, 8:00 in the morning is much more interesting, at least in the meadow. I don't know yet for Fourmile, since it hasn't been up for very long. Too bad I will not really know for a few months, but that is the way this project is. For now I have a couple video up on those sites, with 1 being 8:00 in the morning for August and September, in the meadow.

http://phot.ogra.ph/