Cavision Clamp-on Step-up Ring: Picture 1 regular $41.95

About Cavision Clamp-on Step-up Ring

• This ring allows you to use a 3.65" bottom threaded Conversion Lens or Filter, on a 77mm front threaded lens

The rear of this Clamp-on step-up ring is 80mm ID (inside dimension). It clamps on to the front of a lens that has an 77mm filter thread, stepping it up to accept 3.65" add-on lenses or filters, as the front of the step-up ring is a 3.65" ID thread.

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