This Polarized 30x lens fits the ProScope HR5. Using the polarizing light feature you can see below skin the surface for pigmentation (hyperpigmentation), dilated capillaries, depth of pores, and various skin inflammations. Images will appear softer with less glare. Using a polarized lens on the scalp allows you to see sub-dermal features such as capillaries, follicular structure, sebum clogging, and inflammation. Polarized imaging filters off reflective layer, allowing for imaging of characteristics below the surface. Using a polarized lens is the best choice for most hair care professionals.