Now that I have retired, I have also been reviewing past hobbies, ranging from RC model boating, 40K wargaming, and buried deep in the loft was a 130mm diameter Newtonian telescope with an equatorial mount tripod. This was picked up on a day off from working in China at the indoor market in Schenzhen, some 30 years ago that I managed to get it home in my luggage. This was used for a few years planet gazing then placed in the loft so that the children couldn’t knock it over and be brained by the tripod/counterweight. There it languished until a few weeks ago and I pulled it out and started cleaning it up.
The plastic tripod inter-connecting struts were UV brittle so 3d printed some new ones, and started checking out YouTube videos on set up and calibration so printed a Collimator and otherwise brought it back to a usable state. A lot has changed in the last 30 years and intrigued by the videos of people hooking up their mobile phone to the eye piece to capture images, so printed a mobile phone holder and plumbed that in.
Below is a mobile phone picture of the moon, where I found the limitations of the existing focuser, which wouldn’t allow the use of a Barlow magnifier or some of the eyepieces (to get higher magnification) and still get focus with the phone. Definitely not going to give NASA a run for their money but pleased I managed to get this using what I had to hand.
Doing the research via the Net now makes me realise how cheaply constructed this telescope is, the subsequent limitations, and that ultimately I will need to buy a much better one if I am going to be serious about imaging planets and deeper with a dedicated camera. In the meantime I’m having fun with the low cost option of taking the existing one to pieces and replacing parts to improve it (new focuser off Ebay, printed a more accurate secondary mirror holder, tube cap etc), and learning as I go along.
Cheers John