To make the most durable step-up ring, Breakthrough simply took the craftsmanship, build quality and durability of their professional filters, and adapted it to the step-up ring.
This step-up ring is manufactured with brass and then a matte black electroplated finish is applied, which withstands corrosion and other abrasive elements often encountered in outdoor photography.
The result of better construction and materials, combined with a proven design makes this step-up ring the most durable and functional step-up ring available to professional outdoor photographers.
