Sell Step Up ring 52-7 mm best price

Step-up RING is an accessories on the front of the lens that allows your lens to be paired with converter and filter with different diameters from your lens original diameter. For example You have a lens kit with a diameter of 52mm and you have a fixed lens with a diameter of 77mm, when you want to buy a 52mm diameter, ND or WIde-Macroverter, you can buy a diameter of 52mm, then buy a 52-77 diameter ring Your 52mm diameter lens kit can use all 77mm in diameter. This will save your budget.