medical lamp Magnification is the next factor that must be considered. There is a wide variety when it comes to magnification level of your medical lamp with levels ranging from 2.5x magnification all the way up to 6.0x magnification for most standard medical lamp. When starting out with your first pair of loupes it is typically suggested to start with a low magnification such as a 2.5x or 3.0x since adjusting to loupes is easier if the magnification is lower.Field of view is another factor that should be considered when buying a pair of loupes. With lower magnification comes a larger field of view and makes it easier to adjust to wearing loupes. With higher magnification the filed of view is reduced and is suggested for only those who have worn loupes in past and are confident with a smaller field of view.