Well truth ltd (wtl) is specialize in manufacture of binoculars, telescope and spotting scope included porro optics, roof prism optics, wide angle zoom and waterproof series. Our headquarter is based in Hong kong and with our own factory. We have supplied to praktica, mercedes-benz, Nokia, hugo boss, jaquar car in OEM band.To ensure the quality of every single lens and prism adopted in our own products, we produce the lenses by ourselves. With our equipped facilities, we are capable of producing optical lens from raw glass cutting to polished coating lens for various diameters.With our long years of experience in the optical industry, we have high ability in open housing with our unique design. Some models are designed primarily for outdoor, sports and nature enthusiasts. We also produce high precise big power zoom binoculars for the requirement of high quality market.