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The AOI ER-AX_AX-30 is a 30mm extension ring designed for AX-to-AX port mount systems, enhancing compatibility with larger lenses or custom underwater setups. It is made from PC + GF (polycarbonate + glass fiber) for durability and corrosion resistance.
Specifications:
- Dimensions: 133mm x 45.3mm
- Weight: 173.6 grams
In the Box:
- Front lens cap (LFC-101)
- Rear lens cap (LRC-101)