Answers to a few of your questions...

Several have inquired about the digital microscope journal that I posted last night. The link below is for one that is similar to the one that my wife purchased for me but not the exact same one. Unfortunately (or fortunately), I'm on vacation and do not have the saved bookmark on our laptop. I'll post my saved link early next week.

This link is for a 2.0 mega pixel versus mine which is a 1.3. Both are 20-200x and look and priced similar. Believe it or not, it does not have a manufacturer's name listed on it anywhere???

This camera would not be good for posting general coin photos due to the LED lights which cannot be turned off but is great for detailed closeups. Due to the low price, I decided to take a risk and try one.

http://www.amazon.com/Black-Digital-Microscope-Camera-20-200X/dp/B004Q86ONO/ref=pd_cp_e_2

Hope this helps!

Larry