German imported optical glass and polarizing material, 99.3% perfect polarizing effect,the loss ratio of light fall from 40% to 17%, eliminating the polarized light meanwhile obtaining the best shutter speed; adopts ultra-thin fine grind arenaceous aluminum alloy frame design, so using ultra wide angle will not generate dark corners; the circular polarizing filter adopts two slices of filter with polarizing film to control the incident light, which makes the sky bluer, and meanwhile inhibits the reflection of mirror,water,and leaf surface, are widely used in landscape photography.
1>Ultra-thin fine grind arenaceous A6061 aluminum alloy frame, thinkness of 4.95mm,using of full-frame ultra wide-angle lens of digital camera and without dark corner.
2> Germany imported glass material, thickness of 1.1mm, super temped processing,with high purity and high hardness.
3> Germany imported polarizing materials,the perfect polarizing effect reach 99%,the loss ratio of light from 40% fall to 17%.
4> Adopts no pressing ring technology, realizing the ultra-thin frame and the lens cap can easily covered.
5> Frosted surface with anodic oxidation technology,reducing the reflected light,the halo and flares.