80-80mm Clamp-on Adapter

A genuine Duclos Lenses accessory, the 80-80mm clamps confidently onto the front of any lens with an 80mm front ring and provides a 77mm filter thread at the front for mounting standard threaded filters. The front outside diameter is also 80mm which provides an open surface for clamping additional 80mm accessories such as a sun shade. Ideal for lenses such as the Zeiss Super Speeds which lack a standard filter thread.