The 58 to 80mm Wooden Camera Step-Up Ring for Zip Box Pro Matte Box adapts lenses with a 58mm front filter threads to an 80mm outer diameter surface. This 0.2" thick surface allows you to clamp a Zip Box Pro matte box with an 80mm clamp on back onto your lens.
Note:
Please note that some lenses may vignette; this will depend on the construction your the specific lens.
UPC: 606184859993