P r i m a L u c e L a b i S r l
E SAT TO u s e r m a n u a l
Application example: ESATTO with Ritchey-Chretien telescopes
ESATTO is the perfect focuser for Ritchey-Chretien telescopes, that are great instruments for deep-sky astrophotography
at medium-long focal length.
Ritchey-Chretien telescopes were, just a few years ago, very expensive but now, especially
the models produced by GSO, are
very affordable and allow any amateur astronomer to own and use a
Ritchey-Chretien
telescope. Unfortunately these telescopes comes standard with a focuser that has not the load capacity requested for the
heavy cameras and accessories commonly used in deep-sky astrophotography: let's see how you can use ESATTO
as a
new and better focuser
for Ritchey-Chretien.
The right adapter to use ESATTO as focuser for
Ritchey-Chretien
Ritchey-Chretien telescopes produced by GSO have
2 different threads in the rear part of the telescope and that you can
find by removing the original focuser. A
90mm
male thread on 6" and 8" models or
a
117mm
thread on larger 10", 12", 14"
and 16" models.
In order to use ESATTO as
focuser for Ritchey-Chretien, we designed
2 adapters: the
allows you to use the ESATTO 2" on GSO
Ritchey-Chretiens 6" and 8". The
PL3600236 adapter allows you
to use the
ESATTO 3" on GSO
Ritchey-Chretiens 10", 12", 14" and 16”.
ESATTO as focuser for Ritchey-Chretien telescopes: to the left the 90mm thread that you can find on GSO 6" or 8" Ritchey-Chre-
tien telescopes. To the right, the 117mm thread that you can find on GSO 10", 12", 14" or 16" Ritchey-Chretien telescopes.
p a g e 3 3
