0.5X reduction Lens, eyepiece lens 23.2mm connector. 1 Piece 23.2mm to 30mm Adapter Ring. 1 Piece 23.2mm to 30.5mm Adapter Ring. 1 Piece 0.5X Reducing C-mount Lens. It's just take you 1 minute. We'd like to settle any problem in a friendly manner.
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