Extension tubes are a perfect solution to allow ultra close focusing without sacrificing the optical properties of your lens. ProMaster Macro Automatic Extension Tubes are engineered for a precise fit and proper communication between your camera lens and body.

Extension tubes are a perfect solution to allow ultra close focusing without sacrificing the optical properties of your lens. ProMaster Macro Automatic Extension Tubes are engineered for a precise fit and proper communications between your camera lens and body. 

The ProMaster 8819 Automatic Extension Tube Set for Nikon F mount includes three tubes (12mm, 20mm, 36mm) that can be used individually or in combination to gain the right magnification for your particular need.