Chris Tran

Thanks both for your advice and info. I trained as an Engineer and worked in electrical engineering, but just don't feel confident about this particular reassembly job. Can anyone recommend someone, or a workshop, who could do this reassembly for me? Happy to pay of course. (The telescope is actually a 3" refractor, not 4") Thanks in advance - Chris

16th March 2024 Hello all Our 'family telescope' dates from the late 19th Century I think - a 4" brass refractor, manufactured in Glasgow as far as I know. Due to poor storage, there were some small signs of mould between the (2) objective lenses. I foolishly unscrewed the lens cluster, cleaned the lenses carefully, but found I cannot rethread the brass threads to reassemble the objective lens. Being fully aware of how soft a metal brass is , and how fine the pitch of the thread is, I did not use any force and stopped immediately when I realised this reassembly was beyond my capabilities. Can anyone do this reassembly for me, or recommend a workshop that could do it, please? Thanks in advance - regards Chris Tran (Invergordon)