Category Archives: Hobbies and Other Interests

Tip, upgrading (and fixing) older laptop/computer

Posted on 29 June 2019 by Admin

One can improve the performance by adding more memory and by replacing the disk drive into a faster one. One does not have to be a specialist to be able to perform these activities, but these activities do require that … Continue reading →

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Air turbulence is clearly visible on full moon video close to horizon

Posted on 25 May 2019 by Admin

This is my first video from the second hand skywatcher maksutov 150/1800 telescope, which I bought. This OTA (Optical Tube Assembly) came with an old Celestron AS-GT (CG-5) mount. For the moon photo, I used a manual skywatcher EQ5 mount… … Continue reading →

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DIY CCD camera to Finder scope adapter

Posted on 25 May 2019 by Admin

I bought a second hand telescope which came with a CCD camera ASI120MC and I will try to use this camera for autoguiding by adapting it to an old finder scope . I managed to get a 50/30mm rubber adapter … Continue reading →

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DIY eyepiece to EOS lens adapter

Posted on 25 May 2019 by Admin

For some time I have been thinking if it is possible to re-use the camera lenses for something else, or with some other camera/detector. And I found some plastic adapters which one could print with 3D printer, eg. this. As … Continue reading →

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DIY filter adapter for a camera lens without filter thread

Posted on 19 August 2018 by Admin

Some camera lenses like Zenitar 16mm (F2.8) do not have a commonly used filter thread at the front of the lens. However, it is possible to make your own adapter. An easy non-destructive way is to used filter adapter rings … Continue reading →

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Touchscreen on Raspberry PI, to show key performance data

Posted on 8 May 2018 by Admin

A tiny touchscreen on portable Raspberry PI (RPI) might be very helpfull for showing sensor values or key performance data like memory, CPU level or disk space left. My intention is to build a portable air quality monitoring tool based … Continue reading →

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Wireless router with 4G USB modem/dongle, by ROOTer

Posted on 1 May 2018 by Admin

Previously I managed to get the OpenWRT working on a wireless router. As this router also has an USB port, I tried to get an USB 4G dongle working on it. After realizing that the solution is very much dependent … Continue reading →

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