Designed to be used with the Canon EF 11 - 24 mm f/4 L USM lens, the LEE Filters SW150 Mark II Lens Adapter is an ideal choice. It consists of a compression ring, a front ring, and a locking ring. You can attach the adapter to the lens by sliding the front ring over the inbuilt hood with the integrated lugs of the front ring positioned away from the lens body. Constructed from aluminum alloy, this lens adapter is durable.
This is the construction of a type of filter. The type of process used to create a filter can affect its price. Filters can be constructed out of regular glass that sandwiches a coloured gel in between or in high-end filters, raw elements are added to the molten optical glass so there is no risk of uneven colour or fading.