Extension tube Spacer M48 (2mm, 1mm, 0.5mm)

Many field flatteners, reducers or coma correctors require the theoretically calculated distance between the lens and the sensor for best imaging performance.

This set of narrow extension tubes will be a great help: Three rings with thicknesses of 2 mm, 1 mm and 0.5 mm can be placed over the thread to increase the optical path.