Haida NanoPro 100-Pro to Start Filter & Holder Kit 100mm: Includes CPL, 67mm 72mm 77mm 82mm Adapters & Storage Pouch HD3731

Great product. Easy to mount. It is convenient because for a relatively cheap price you get a holder, a very good circular polariser filter, adapter rings and a soft pouch. The pouch is perfect to carry around the holder system, ND and graduated filters, adapter rings and there is still room for more filters. The holder is composed by two rings which can be blocked in the position you like by a lateral screw. To split them you need to align the white triangles on the side of both rings. There is a clever rotating ring allows to easily rotate the polariser filter which you need to screw on the inner part of the holder. Love that, makes it easy to rotate the polariser. The holder has to be attached to the lens through adapter rings which are provided in this kit (check which adapter size you need before the purchase). The external portion of the holder contains two filter slots for squared filters (but the kit comes with an additional slot and screws that you can mount on top of the other two slots). There is no light leakage when mounting ND filters with a gasket. You can mount Haida filters or filters from other brands. I sold my Lee filter system switched to this one and I think I will never look back. Very clever and solid system for a business conscious photographer. Shipping was fast and the quality of the item is really good.