Inner Threaded Design
Effectively reduce stray light interference, not only improve the brightness of the image, but also effectively reduce the dark edges formed, the edge details of the image are clearer.
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Variable Form
The required spacing can be achieved by combining several extenders of differing lengths, you can use 1 piece, 2 pieces , 3 pieces or 4 pieces of the extension rings as you like.
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Aluminum Material
All metal construction and anodizing aluminium process, durable for long time use. High-quality aluminum material makes the product lighter and easier to carry.
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