![Step-Up 52 - 62mm Lens Ring](http://dorrfoto.co.uk/cdn/shop/files/361183.jpg?v=1722425096&width=1445)
Dorr Step-up 52-62mm Lens Ring mean you can attach filters or other lens accessories to a lens with different diameter. The first number corresponds to the thread diameter of the lens, the second number to the thread diameter of the filter.
For example, the 52mm - 62mm step up ring allows a filter thread size of 62mm to be fitted onto a lens with a thread size of 52mm.