Jon Lund Steffensen

- Laptop: 13-inch Dell XPS, 4GB RAM. My original model (XPS M1330) literally went up in smoke and Dell kindly sent me an updated and upgraded version (Studio XPS 13) for free. I like the size, but it runs very hot and has some terrible design features like the air vents which are half blocked when the screen is open. Next time I'm getting a Thinkpad.

- OS: Ubuntu 10.04 64-bit. Rock solid. Launcher/dock: Gnome-Do, Browser: Chrome, Editor: Vim, Version Control: Git (though my Git skills are still a bit shaky), Music: Songird.

- Special mention goes to Redshift (http://jonls.dk/redshift/), which is one of those colour temperature programs. Recommend you try it or f.lux for a few days. If I turn it off at night I can barely look at the screen it's so bright.

- Second OS: Windows Vista 64. This was pre-installed. I can't stand using it (not sure which of the home/business/ultimate editions it is), but I've kept it around for occasional Sky Player (for watching Premier League games - needs Silverlight), Photoshop and Portal.

Other electronics:

- I had a pair of Ultimate Ears Super-fi 5 Pro headphones
and they were incredible: Total isolation and excellent clarity, even on the tube, but they have gone missing. I'm going to order another pair soon.

- Nikon D300 Digital SLR with a few manual primes. I love the heavy, solid feel of these lenses. There's no going back to a kit zoom lens with a plastic mount after you've learned to focus quickly, which doesn't take long. My…

> It's the worst when I'm working on my computer, due to the blue light (I've started wearing yellow sunglasses to minimize the effect)

If you are on Linux you should have a look at Redshift[0]. It allows you to adjust color temperature and brightness via command line. During daytime I put more blue and brightness into the screen, depending on the weather outside (5000K-6500K, 70%-100% brightness). I do this once when I start working. When it gets dark outside I turn the values down to something like 3000K-4000K and 50%-70% brightness, depending on the amount of light inside the room. This relaxes your eyes and puts you in a better (less tensive) mood, especially at night. Redshift really became essential to me.

[0]:http://jonls.dk/redshift/

Presently, none, but I have had a few ideas I've been wanting to get started on when I have more time for a hardware side project.

The first one to come to mind is an LED lighting setup that shift's it's color temperature according to the time of day, à la f.lux[1] or Redshift[2]. LED continue to improve for general lighting purposes, but it can't be good for my sleep patterns to have daylight temp lighting in my home right up until bedtime. It would be really nifty to the lighting in my home adjust to warmer temperatures with the solar day like my computer screens do.

1. https://justgetflux.com/

2. http://jonls.dk/redshift/

I'm from Europe too. Blue(ish) is daylight colour while red(ish) is night colour. Staring at blue light hinders melatonine production, affecting the sleep cycle. Hence the existence of products like Redshift [0] and Twighlight [1]. Increasingly, this is built into visual interfaces, both my Gnome and Android have things called "night light" or something similar.

[0]: http://jonls.dk/redshift/

[1]: https://play.google.com/store/apps/details?id=com.urbandroid.lux

http://jonls.dk/redshift/

http://justgetflux.com/

I started using redshift a few months ago to try and rein in my sleep schedule, but it's also done wonders for eye fatigue. Highly recommended.

For those of you who aren't familiar with these utilities, they basically adjust the color temperature of your display on a schedule with the goal of reducing your exposure to bright blue light before bed. Can be toggled if you need to do work with accurate colors.