12/31/2023 0 Comments Diy refractor telescope![]() They are able to do standard broadband coating which they claim to bring the reflection down to 2%. 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. superstores have the effrontery to offer. 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. We shall describe how to design and build a REFRACTING telescope one that. I'm leaving enough back focus so I can stick my CCD and filter wheel to it. Youll need a piece of corrugated paper that is about 24 inches in length (this is a ridge material, easily available from paper. 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? 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. Seven piece 127mm-900mm DIY Reflector Telescope making kit You just need to find a pic pipe or any other pipe to fix these in to a beautiful hand made. 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. 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. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |