If you look at the coin photography site by Mark Goodman
http://coinimaging.com/photography.htmland you see that small black halogen desk lamp he has pictured, well I had that same exact lamp about 8 years ago. I just used it for viewing coins with my loupe. It was a great little lamp. I can't remember where I got it though, maybe
K-mart and wonder if they still sell these. I'd like to set 2 of these lamps up. I've tried moving the camera further away from the coin to get better lighting but I lose too much detail.