Continued... [ATTACH] Star Roundness Trial 1: New Fan ON....2nd repeat, different area of the sky [ATTACH] [ATTACH] [ATTACH] Star Roundness...
Results of Star Roundness Trials after replacement of the Fan Firstly a comparison of the noise made by each of the fans when cooling: This is a...
Here are the detailed results of my trails for completeness: Red Filter Fan On vs Fan Off [ATTACH] Red Filter Eccentricity Fan On vs Fan Off...
Hi Doug, The fan makes a lot of noise, but I have no reference point to know what is reasonable and normal, however, you can hear for yourself. I...
Thanks Andrei, I have made a note of that. Regards, Niall
Thanks Doug, as I looked back on my results, it seems to me that the eccentricity has been getting worse as time goes by. I was getting 0.6s then...
Thanks Andrei. This has taken me a long time to understand and frankly I am a bit annoyed with myself for not doing a better job of the root cause...
Thanks Thorsten. When I turned the fan off the stars were round. When the fan is on they are highly elongated. It is clear that vibration from...
Thanks Colin, I just removed the outer guard to inspect the fan and to make sure all the blades are there and that there was nothing that might...
Hi Thorsten, I have been doing research on my issue and there are a number of threads in various forums which identify this as a not uncommon...
Roger that Doug. When the OTA is pointing to the zenith and the visual back is at its lowest position the cord will drop to the floor. I didn't...
Thanks Thorsten. That is definitely worth a try. The trials I have done tell me that the issue is rotating with the camera, so suggesting this...
Thanks Colin, I appreciate the time you've put into this: A. Tube Rings I have looked at these and yes they would make a difference to the...
Hi Colin, I have been doing further experimentation on my star elongation problem and reviewing some of my previous data. These call into...
Thanks Colin. Firstly thanks very much for the support you have given me on this one. I agree that there is no issue in terms of the camera and...
Hi Colin, just a further update. I have finally had some opportunities to continue my trials. Frustratingly I am still not able to get...
Thanks again Colin.... Here is the website where the optical and mechanical thickness are specified:...
Hi Colin, Thanks for that. Yes the specification distances were calculated from the back focus table you provided. It specifies that the...
Hi Colin, here is an update on my trials with the SBIG 16803 and C14 Edge HD. Thank you again for your excellent support. Incidentally, my whole...
Thanks Colin, I will proceed on this basis.
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