Songzi Optics (2.5X,3X,3.5X Optional) Black Frame Binocular Dental Loupes Surgical Loupes with High Brightness Headlight (Working Distance :(500 - 600 mm) XL, Magnification:3X)

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About Songzi Optics (2.5X,3X,3.5X Optional) Black Frame

This model loupes can only be used by person with normal vision, If you are a beginner to use loupes, we recommend you to choose magnification 2.5X, because lower magnification loupes have bigger field of view, so loupes focus easy. The pupillary distance can be adjusted by one center axis,it is very simple and convenient for user. Magnification. loupes have 4 kinds of working distance : S(280 - 380 mm), R(360 - 460 mm), L(440 - 540 mm), XL(500 - 600 mm). How To Choose Your Loupes Determine your working distance, which will also automatically determine your field of view. While working on a friend or family member have someone measure the distance from your eyes to your friend's mouth or body: this is you working distance. Choose the distance that is closest to the selection we offer.If you are sitting while working, your height is from 160cm to180cm, we recommend working distance R (360-460mm ). IF you are standing while working, your height is from 170cm to 180cm, we recommend L (440-540mm) working distance, even XL(500-600mm) working distance will be suitable.