There's also the bulkier "QX5" microscope made by a company apparently now owned by
Intel, which cleans 640x480 resolution and sells for half the price.
I have one of those, maybe it is the older QX3, not home to
look right now. Years ago Intel had a line of "Toys", and sold these
as educational devices as Sears and other places. I picked up a couple
when they where being discontinued.
It works, but not all that well. What is the most important in this application
is to have a good full spectrum light source.
But the annoying thing is that neither microscope claims Linux
support. Would ThinkGeek sell something that doesn't work with Linux?
Aren't they marketing to, well, geeks?
You need to find out the chip set that is used and see if that chip set
is supported by Linux.
Another approach is to use a CamCorder with Macro Lenses.