It could also be due to the objective not having any sort of AR coating a far as I can tell. Basically a glow around the bright lights. Not sure if it was due to bad collimation or something else due to the flimsy temp setup but I was getting quite a bit of light scatter if that's the right term. With this setup I was able to get my first images (of some lights on a crane a couple of miles away). If not then I'll just print an extension tube. Assembly is quick and requires no tools or adhesives. This won't quite give me enough outward travel on the focuser for visual use but I'm hoping the star diagonal I've ordered will be of enough extension. Galileoscope telescope kit includes all of the parts and instructions needed for young explorers to build their own 50mm refractor. I'm leaving enough back focus so I can stick my CCD and filter wheel to it. I managed to print the rear and front tubes so I could do a temporary assembly to find out the final length of the scope. This is because holidays got in the way ? Is this because of the design of the eye piece itself? Surely the CCD doesn't go there as there's no refracting lenses? But what is the correct position for it? Slightly in front of the prime focal length depending on the size of the sensor? The eye piece seems to be behind the prime focal length (f1 + f2). I was looking at this picture and got a little confused:
But where exactly is the sensor in focus?
#DIY REFRACTOR TELESCOPE PORTABLE#
It is much more portable and requires less care. I know I need to have enough back focus to be able to get the CCD sensor in the right spot with any optional stuff between the camera and the focuser. These plans are for a homemade telescope that will be cheap to build. Ideally I'd like to be able to do both visual observing and imaging. What is the right length then? Well here's where I hoped you guys could help a little. All I really need is a tube of the right length and I can start testing. The focuser is a bit big for this but it'll have to do for now. I've only got as far as printing a lens cap and digging around my surplus boxes to see if there's anything I could use. Peter from The Astronomy Centre was kind enough to donate the 72mm objective for this project which I'm ever so thankful for.
#DIY REFRACTOR TELESCOPE PLUS#
So I've decided to have a go at making a small refractor telescope mostly with what I already have plus some custom 3D printed and/or CNC milled bits and bobs.
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