Admetec’s Ergo loupes series offers an unparalleled combination of magnification potential and user comfort. Customized to each individual wearer through a multi-factor process, the loupes’ precision vision and exceedingly light weight helps healthcare practitioners work more comfortably and effectively for extended periods of time, maximizing concentration by minimizing physical discomfort.Ergo loupes are available in six different levels of magnification: 3x, 4x, 5x, 6x, 7.5x and 10x.All loupes are customized to the individual measurements and needs of each customer.Weight: 45-64g (Varies by )Working Distance: 400-700mm (Customized for each user)