Macro AF Auto Focus Extension DG Tube 10mm 16mm Set Ring Metal Mount for Sony E-mout NEX NEX-6 A7R A3000

Description

Features: This macro extension tube set is suitable for Sony NEX E-mout. This tube enables a lens to focus closer than its normal setminimum focusing distance. Built-in electric pins, so it supports automatic focusing, automaticexposure, TTL, etc. Combined with 2 tubes in different length: 10mm, 16mm. can be used in any combination or individually to obtain thedifferent magnification. Superior lock pin which can tighten the tube joint. Perfect for macro shooting. Extension Tube Distance reading of master lens Image magnification ration Field coverage(cm) Exposure factor 10mm inf 0.2 6.5 * 8.7 1.44 0.5 0.31 4.2 * 5.6 1.72 16mm inf 0.32 4.1 * 5.4 1.74 0.5 0.43 3.0 * 4.0 2.04 10mm + 16mm inf 0.52 2.5 * 3.3 2.31 0.5 0.63 2.1 * 2.7 2.66