62mm Pro series Multi-Coated High Resolution Digital Ultraviolet Filter For Sigma 18-250mm F3.5-6.3 DC Macro OS HSM, Sigma 70-300mm f/4-5.6 DG OS Lens, Sigma 18-200mm f/3.5-6.3 II DC OS HSM Lens This ultimate clear uv filter will not affect color balance. It protects lenses from expensive front element damage Reduces lens flare and ghosting Microfiber Cloth 62mm HD Filter