Sky-Watcher 120mm Telescope with Portable Alt-Az Tripod - Portable f/5 Refractor Telescope - High-Contrast, Wide Field - Grab-and-Go Portable Complete Telescope and Mount System

okay guys i'm back it turned out that uh my measurement from uh the back of the telescope to where the uh sunlight focal point was about 137 millimeters so we're going to install the scope there this is a uh cwo 290 mc um i've got a uh noise filter on the front i think it's a uhc or something like that with the cone and everything so pull up this little guy here stick this little guy in here this little guy in here we want to measure about 137 millimeters and what i do is i mark my cameras where the sensor is i just use a perma marker and then it comes off i use it all over the place on my telescope everything to mark so i won't forget and it just comes off with the rubbing alcohol really easy so let's see here we want i can steady this camera here about a hundred and thirty seven millimeters between the back of the scope and the sensor i think we need to zero this thing out here this t