The Testar Esatto 3" M81 Extension is a 10mm extension tube designed for the Prima Luce Lab Esatto 3" robotic microfocuser. With M81 x 1 threads on either side, it allows you to reach focus when using the ARCO rotator.
Engineered in-house by us and made from CNC-machined and hard-anodized 6061-T6 Aluminium.
|Connection side A
|M81 x 1 female
|Connection side B
|M81 x 1 male