Fine grinding error is very low

ZEISS lenses, precision high and error small to a point of incredible Take the lens grinding smoothness as example: if we magnify diameter of 70 mm zoom lens into a diameter of 26 km of the lake,the lake water waves ripple,fake ray ban peak to trough, the gap is not more than 0.1 m.
Strict control of the color scatter coefficient

To the lens, lens dispersion the lower the better , the dispersion coefficient the bigger the better, if the dispersion is strong it will has prism effect, resulting in discomfort such as dizziness brain up, so the dispersion coefficient become one of the important indicator to measure the lens, ZEISS lens special attention to control of the Abbe number , the dispersion is far less than other brands of the same refractive index lens,replica ray ban showing a perfect visual.
The light transmission rate is a parameter to measure the light transmission properties of materials, it refers to the ratio that the total amount of light entering the eye after through the lens with the total amount of light reach the lens ,the higher the ratio the better the description of the material translucent.fake ray ban sunglasses ZEISS optical has improved the transmittance of the lens to achieve unprecedented new height of the lens industry on the technical, to become the goal of the new standard for high-end lenses and pursued !