The Urth 86-52mm Adapter Ring for 100mm Square Filter Holder is made of aluminium and is used to mount the 100mm Square Filter Holder from Urth on lenses with a 52mm front filter thread.
Urth 72mm Magnetic Adapter Ring
Urth 67-37mm Adapter Ring for 75mm Square Filter Holder
Urth 67-39mm Adapter Ring for 75mm Square Filter Holder
Urth 86-43mm Adapter Ring for 100mm Square Filter Holder
Urth 52mm Magnetic Adapter Ring
Urth 86-49mm Adapter Ring for 100mm Square Filter Holder
