The M56 15mm extension tube can be directly threaded to the ESATTO 2" draw tube in order to attach cameras and accessories further away from the ESATTO robotic microfocuser. This is particularly useful for refractors which usually have long travel focusers.
This M56 extension tube has 15mm thickness, is made of anodized aluminium, and has a M56 female on the camera side for connecting any of the ESATTO 2" camera adapters.
|Optical thickness||15 mm
|Connection (telescope side)
||ESATTO 2" thread
|Connection (camera side)