For some reason, the cleanness and crispness of their photographs always prompts me to look through all their galleries, even though I'm not very interested in the guts of a Kindle Fire.
http://www.ifixit.com/Guide/Installing-A-Guitar-String/718/1
It looks like "Use two lamps on the object, one on each side." is the recommended lighting scheme. A light tent would certainly be an asset.