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Hello everyone,
Thanks for the responses so far, I have finally got my hands on it for a proper look and I've got some photos.
I've taken some measurements and I believe it to be a 3" F/15-18. My first impression a couple of years ago was off by an inch! I've measured from the front of the objective to the rear of the focuser and it comes in at 45". Once the focuser is racked out a little and a diagonal is added it could push it closer to the F/18.
Has a sticker on the bottom that says "Introductory & Hand Crafted Telescopes" and then the mobile number of Cris Ellis of Astronomy Alive. The telescope is all black, has a finder scope bolted onto it and has 3 collimation bolts for the objective.
From what Cris has told me in the past he designs optical systems but I don't think he's ever built a refractor so I am still wondering if it could be something from Barry.
The image Matt posted is of a white telescope so I'm not sure if most of what he did was white.
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