The Bower 52-46mm Step-Down Adapter Ring easily screws onto the front of any 52mm Lens, and allows you to convert to the 46mm threads of accessory items (such as filters, hoods, flashes and lens converters).

• Adapts lenses that normally use 52mm accessories to 46mm size
• Works with anything 46mm, lens hood, filter, wide angle or telephoto auxhillary lens
• Top quality, machined from aluminum with a black anodized finish that will not fade