Product Name: M42-M42T Mount Extension Ring Product Code:TA3132 TA3133 TA3134 Option:3mm 4mm 10mm Description: 1.This brand new Macro Extension Tube Set for your film & Digital SLR 2.Use this set will not downgrade the optical quality of your lens. 3.To provide additional extension, one or more extension tubes can be added between the camera and the lens, to make the lens focus at closer distances and therefore produce higher magnification. Package include 1pc X M42-M42T Mount Extension Ring |