I was considering getting the SQM-LU, the USB lensed SQM meter, for using as a mobile dark sky setup. This would be very similar to my previous attempt where I used a GPS and the IYA lightmeter around Wicklow. There are a few issues with using the SQM-LU in this way.
I finally got around to hacking a Philips SPC 900 to enable it to take long exposure images suitable for astrophotography. The modifications are fairly well known. The approach I took is a mixture of the http://www.boltonastro.org.uk/Members%5FArea/Projects/spc880conversion.pdf from Bolton Astronomical Society and http://www.yesyes.info/index.php/diy/philips-spc900-webcam-lx-and-ampoff-mod/ . The circuit between both approaches is roughly the same, I followed
I got the PST out again recently. As we approach Solar Maximum it would be a shame not to have a look every now and then.
A collection of some of the main pages describing the long exposure and amp mods for the SPC900 webcam. http://home.zonnet.nl/m.m.j.meijer/D_I_Y/spc900nc.htm http://www.yesyes.info/index.php/diy/philips-spc900-webcam-lx-and-ampoff-mod/ http://stargazerslounge.com/astro-lounge/114129-pictures-taken-during-some-lx-mono-mods.html http://www.boltonastro.org.uk/Members%5FArea/Projects/spc880conversion.pdf Now just to read through them all, order the bits I need, and do the mod. Simples.