... ,high quality,reasonable price 3.0X Diamond Jewelry Binocular Loupes Magnifiers This kind of product is widely used for ... field of view5)Flexibility for precise adjustment"CH300" jewelry loupes Specification: Item NO.CH300Magnification3.0xOptical SystemCompound OpticsWorking Distance200-600mmViewing ... ,blue and red-whiteAlso we can provide “CH” Series jewelry loupes as follows: 2x , 3x , 3.5x and 4x , ...