100mm Square Z Series Filter Holder + 52-82mm Metal Adapter Ring For Haida Lee Hitech Cokin Z Pro 4x4"/5.6/5 100 Series Filters - Camera Filters - AliExpress
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IFH-100 Filter Holder - Irix lenses were designed with both the effort and experience, of not only engineers, but also photographers. Swiss precision and Korean innovation create it.