JJC AET Series of Automatic Extension Tubes allows your lens to focus closer than its normal minimum focus distance. Among JJC AET series of automatic extension tubes, AET-CS is a set including 12mm, 20mm, and 36mm automatic tubes, and so is AET-NS; AET-M43S is a set including 10mm,16mm automatic tubes and so is AET-NEXS; AET-C12 is a 12mm tube and AET-C25 is a 25mm tube.The extension tubes can be used individually or attached together to achieve your desired focusing result.
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