Digital Camera Repair Questions? Ask a Camera Expert.
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I need to ask, before giving you advice and information:By "lens pod," do you mean a lens-mount extender, a cylindrical standoff to increase focal length from a given lens?
The circular ring in question - does it have any markings on it, or directly adjacent to it if all it has is a tick-mark or reference mark on one side? if so, what are those markings? they can reveal the nature of the ring.