ProMaster Step Up Ring - 58mm-77mm $9.95 A perfect complement to the ProMaster filter line. ProMaster Stepping Rings are precision machined to properly convert the thread size of your filter and/or lens. Add to Cart
ProMaster Mini Studio Clamp with Brass Double Spigot $19.95 Double spigot 1/4-20 male - 3/8 male (brass) Add to Cart
