Application example and!focus position!of your refractor
Refractors usually have very long focuser's draw tube while the ESATTO is a microfocuser designed for the small
and precise movements requested in astrophotography. So,#if you remove a focuser with long draw tube and you
connect the ESATTO, in order to reach the focus you may need one or more extension tubes to install after the
ESATTO focuser. For example, we can consider the ED 80 refractor telescope by SkyWatcher (EVOSTAR 80 ED)
or Orion (80 ED).
When you focus on stars, SkyWatcher EVOSTAR 80 ED bring the sensor at 264mm distance from telescope tube.
For this telescope we can use the #2" version of ESATTO and we designed a proper adapter (PL3600230) to con-
nect it directly to the tube. By removing the 3 screws that fix the original focuser to the telescope tube, you can re-
move the original focuser (please note, sometimes manufacturers use#thread lock#so you may need to apply force
to unscrew the locking screws), then install the#PL3600230 adapter instead and finally connect ESATTO.
ESATTO 2" installed on the SkyWatcher EVOSTAR 80 ED telescope instead of the standard focuser.
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