T&Y foto 77mm ND Filter ND1000 10 stop for Canon EF 24 105mm f/4L IS, 24 70mm f/4L, 70 200mm f/2.8L Kit Lens|Camera Filters| - AliExpress
Amazon.com : CPL Circular Polarizer Glare Shine Polarizing Filter for Sigma 24-70mm F2.8 IF EX DG HSM Lens : Electronics
For Canon EF 24-70mm f/2.8L II Lens CPL Filter FND 82mm Digital – FND WORLD
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Canon Lens Filters Size Chart and List of Popular Filters to Use
Canon EF 24-70mm f/4L IS USM Lens Bundle + Commander UV Filter + Polarizer