Oh, and I highly
echo Shawn's comment on a 45 degree angle. Mine is an Amscope 10-20x probably like what you are looking at (not sure model number) and it is a
fine scope at a decent
price, but the 45 degrees would be so much easier on the neck and general comfort, especially if you are using it for long periods of time. And, I also use mine for soldering at 10X, but for most of the soldering I do, I don't need magnification. For tiny components, it is great.
Virgil