Why does the Ep holder unscrew from sw Explorer 130

[Guest]

This has confused me since I got the telescope and can't find anything in the manual for it. Is it just how the focuser is assembled or does it have another purpose?

[Knighty2112]

Just the way these are made. Most focusers assemblies have a similar arrangement. You can also get an adapter to screw directly onto most focusers so you can attatch a camera directly onto the focuser tube as well, so the screw thread on the focuser tube is also utilised for that if you unscrew the end part off. 

[Guest]

thanks. i wasnt sure if it was something along those line  hoped it was

[Cornelius Varley]

There might be a t thread on the end of the focuser, but I don't it is. The eyepiece holder needs to be attached to the draw tube somehow and using a threaded attachment is the most efficient way of doing it.