This adapter allows you to install theESATTO 3″robotic focuser to theSkywatcher Esprit 120 ED & 150 EDapochromatic refractors.A precise dovetail coupling system with 3 screws set at 120 allows you to manually rotate the focuser.

Note– 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 Prima Luce Lab have designed a65mm extension tubethat can be installed between ESATTO 3″ and the telescope. Additional extensions may be required depending onwhat accessoriesyou use.

The upgrade kit does not account for the extra thickness of the ARCO rotator, so if you intend on using this then adifferent extension tube will be required. Contact us for more information.

Specifications