Ardin Corp. of Ningbo Haishu

Model Number: AK028 Brand Name: Aike Key Specifications/Special Features: 1. Lens construction: 4 groups, 5 elements, includes an aspheric element2. Aspherical lens reduce or eliminate spherical aberration and also reduce other optical aberrations such as astigmatism3. Glass: 5 elements Germany imported glass, brand Schott4. Aspherical macro lens continuously focus 10-50mm distance from objects, photograph high sharpness images without distortion, ideal for close-up shots, such as insect, flowers, small Buddha, jewelry, PCB board, also ideal to examine skin and fur5. Wide angle lens FOV: 115°Magnification 0.6XDistortion: ≦0.2% 6. Coatings: multiple layers anti-reflective coatings for double-side of each glass7. Lens housing: high grade aluminum alloy, CNC five-axis milling machine process, sand-blasting, fine finished8. Flower petal ring: reduce ghosting, reflections, lens glare9. CPL: mounting for 37mm CPL filter (optional)10. Can unscrew off flower petal ring, switch to CPL