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I would like to share my design of a smart barn door tracker. It is a simple to build isosceles barn door tracker with tangent error correction through a Arduino micro-controller. I have shared all the details about the tracker including the mechanical design, electrical circuit and the software source code here:
If you are interested in the math and other details about a barn door tracker, more details are there in the blog. Also find an online calculator which helps in calculating various parameters while designing a barn door tracker. The blog is here:
M46 and M47 shot with this tracker.
135mm lens, ISO800, 15sec X 200 subs (50 minutes) exposure. Cannon 500D.
Comments and suggestions most welcome!
For sale 450D camera modified for astronomy, the IR filter has been removed to allow the important red emission nebula to come through.
This camera has a low shutter count of 3977, in very good condition, comes with 1 battery/charger, USB connecting lead to computer and manual, I don't have the original box, but will pack, very well. The price is £165 and includes special delivery. This is for the camera body, no lens. Any questions please email me any questions........
I managed to get this picture last night using my Celesteon SCT 9.25, with an old Cannon Rebel camera which had a x2 Barlow attached and went into the diagonal.
Not sure what the expose time was but it was very short as longer exposure made it white with no orange band detail.
Just edited the image on my iPhone. No stacking nothing.
Can I expect much better pictures with my kit? If so how?
Zero budget astrophotography...
I thought it may be interesting for people wanting a super lightweight and easy to set up form of astrophotography that costs next to nothing. I've taken these three shots with my mobile phone through a pair of cheap binoculars using an ordinary tripod (it belonged to my wife's grandfather).
The intergration time for each was only a few minutes.
Orion: 157 x 1 sec
Andromeda 300 x 2 sec
7 sisters 120 x 2sec
I've made a VIDEO of the method and the surprising adventure I had taking them which you can watch here: