M81 25mm extension tube for ESATTO 3" and ARCO 3"

Adapter from M81 to M48 with stop ring for ESATTO 3" allows you to connect any camera or accessory with M48 female thread. Just thread this adapter to the M81 thread of the ESATTO 3" draw tube. Thanks to the M48 stop ring for ESATTO 3" you can also fix the camera at a precise angle in order to better frame your camera sensor at the desired object.

Adapter from M81 to T2 with stop ring for ESATTO 3" allows you to connect any camera or accessory with T2 (M42x0.75) female thread. Just thread this adapter to the M81 thread of the ESATTO 3" draw tube. Thanks to the T2 stop ring for ESATTO 3" you can also fix the camera at a precise angle in order to better frame your camera sensor at the desired object.

ESATTO robotic focuser is also available in 3" version with 76.3mm free aperture, 25mm of draw tube travel, 8kg of payload capacity and an incredible resolution of 0,04 micron per step! The perfect solution for apochromatic refractors and Ritchey-Chretien or Cassegrain telescopes, and heavy imaging trains with large cameras and accessories like off axis...

When installing ESATTO 3" in a telescope with a long travel focuser (such as those usually found on refractors), it is necessary to take into account the lower travel of ESATTO 3" since it's a micrometric focuser. For this reason we have designed this 65mm extension that can be installed between ESATTO 3" and the telescope tube. A precise dovetail...