This is a Samyang-made lens that has a maximum focal length of 24 mm and a minimum focusing distance of 0.25 m. Your filters need to have a diameter of 77 mm to fit this lens.
From WEX Photo Video
Samyang VDSLR 24mm T1.5 MK2 Lens for Canon EF
Quzo
Samyang VDSLR 24mm T1.5 MK2 MILC Cinema lens Black
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