Hoya 58-55mm Step Down Ring:
Hoya 58-55mm Step Down Ring is a lightweight and reliable ring that is an
essential accessory specifically for professional photography. It is constructed
from aluminum-alloy that has a corrosion-resistant, durable and long lasting.
The thin frame size minimizes vignetting when attached to a lens and the black
finish of the ring limits the chance of internal light reflections. You have a
filter or other lens accessory which screws into a 58mm thread, but your lens is
a 55mm thread. These rings provide a female thread which accepts your filter or
accessory, and a male thread which screws into your lens. This allows you to mix
filters and other accessories on various lenses which may have different size
accessory threaded sizes.