| 摘要 |
<p>A multi-function CPL polarizing and adjustable ND filter, comprising a ring-shaped rear mirror frame (1), a CPL polarizer (2) and an ND filter (3), wherein the CPL polarizer (2) is provided in a ring of the rear mirror frame (1), and is rotationally connected to the side wall of the inner side of the rear mirror frame (1); and a clamping block-clamping groove structure at one end of the ND filter (3) is detachably, rotationally and adjustably connected to the rear mirror frame (1), and is located in front of the CPL polarizer (2). In this way, the demands of a CPL polarizing function and an adjustable ND function can be satisfied as long as a user only need buy one multi-function CPL polarizing and adjustable ND filter mentioned above, so that repetitive purchase of a product is reduced, and the expenditure is greatly saved. Meanwhile, it is easy and convenient to carry and save. Moreover, the switching between the CPL polarizing function and the adjustable ND function can be completed only by disassembling and assembling the ND filter, and the operation is very simple, convenient and quick.</p> |
