How do you solder under a microscope?

You if you are using the traditional optical microscope to weld, how to use is not convenient. With a digital microscope is more convenient, with a digital microscope when you want to weld something away from the microscope lens more than 10CM, and then adjusted clearly, so as not to rosin smoked to the lens, choose a digital microscope when you want to choose the kind of 20-200 times, do not choose too large a multiplier, not useful, the focal length is very short, to be affixed to the plate in order to zoom in, not practical. Enlargement of 20 times is enough, you can go to Shenzhen, a Taobao store to buy, called micro-expression Precision, 20-200 times enough for you to use, the price is not expensive