I may have to replace the stock focuser that came with the Askar 130PHQ refractor.
I am looking at Starlight Instruments focusers but not sure why I would choose a 2", 3" or 3.5" focuser. The stock focuser is 3.4".
What is the difference and why would I choose one over the other? The scope is in a dusty desert dark sky observatory which is probably why I am had to have the stock focuser removed, cleaned and lubricated as it wasn't working well. Tech at observatory suggests I invest in a higher quality focuser.
Thanks,
Jerry
I am looking at Starlight Instruments focusers but not sure why I would choose a 2", 3" or 3.5" focuser. The stock focuser is 3.4".
What is the difference and why would I choose one over the other? The scope is in a dusty desert dark sky observatory which is probably why I am had to have the stock focuser removed, cleaned and lubricated as it wasn't working well. Tech at observatory suggests I invest in a higher quality focuser.
Thanks,
Jerry