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Old 13-10-2018, 07:59 PM
RyanJones
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RyanJones is offline
 
Join Date: Jun 2018
Location: Melbourne,Australia
Posts: 1,439
Skywatchers 102mm refractor help

Hi all,

Today I purchased a skywatcher 102mm refractor from another IIS member. It didn't come with a diagonal or a dovetail so I have to get a couple of other bits and pieces to use it. In the mean time, I thought I'd throw an eye piece on the back of it and just hold it up to the moon and have a look. My problem is I can't get anywhere near focus with it with the focuser fully racked in and a 21mm eyepiece in it, the big white ball gets smaller as if it's moving towards focus but it doesn't even get close. At first I thought maybe it has to have the diagonal to get to the correct focal length to get focus but surely that would mean it would get closer to focus with the focuser racked all the way out ? I'm confused. This is my first refractor so I'm really flying blind. I'm I missing something in my head or on my OTA ?

Ryan
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