Category Archives: For Fun or Interest
Air turbulence is clearly visible on full moon video close to horizon
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
DIY CCD camera to Finder scope adapter
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
DIY eyepiece to EOS lens adapter
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
DIY filter adapter for a camera lens without filter thread
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
Touchscreen on Raspberry PI, to show key performance data
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
Wireless router with 4G USB modem/dongle, by ROOTer
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
Virtual magnifiying glass
One of the handy tools to have is virtual magnifying glass. It can be a solution when one need to enlarge only a portion of the display. For example, if you want to show some video or demo on a … Continue reading