Tiny Telescope - a pocket sized Dobsonian

Could it be the smallest 4“ telescope in the world? I build this little Dobsonian as a scale model of my 16“ f/4 Propdob. Initially just for fun and for display purpose only, but it appeared to work just fine! I brought it as an extra telescope on one of my observing trips to La Palma, and I made quite a few observation and sketches through it. Visit (in Dutch) to find more info.