2019 NEW Focusing Mask for DSLR Camera Lens -Stainless steel Focus Mask
1，Larger asterism and 0.3MM ultra-thin focus 2，The focus mask has the advantages of firm stable with Aluminium Alloy Frame. 3，Increase the adjustment and fixed range, from 49UV to 82UV lens all can be used, 50,60 telescope, we achieve the multipurpose with a focus mask. 4，This product should be handled with care,so it do not affect the focus.
Product Video:How to use a focus mask with DSLR camera lenses