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Old 03-06-2016, 07:53 PM
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codemonkey (Lee)
Lee "Wormsy" Borsboom

codemonkey is offline
Join Date: Jul 2013
Location: Kilcoy, QLD
Posts: 2,055
Originally Posted by Shiraz View Post
suspect it is a complete red herring Lee. The test was done at 0.2 arcsec sampling and shows an almost perfect diffraction pattern, so it is based on an artificial star and is waaay magnified. A real test would be on a star through the atmposphere and I suspect that will show nothing measurable on DSO imaging - should be easy to do. Would be an issue for planetary imaging, if it is that bad, but you don't need cooling for planetary.

Any camera with a fan will have fan vibration to some degree - these are the only ones that allow it to be tested because they run fast enough to see it (at video rates) and you can turn off the fan.
Originally Posted by glend View Post
No vibration from my ASI1600 fan. My bahtinov mask star test shows perfect sharp diffraction pattern, with no observable difference in fan off or fan on. If he thinks he has any vibration in his 178 he should return it under warranty. As far as that test is concerned i agree with Ray, it would be irrelevant on DSOs and in the real world of lucky planetary imaging where any sus frames are discarded from the video stream. If he wants to do anything about it, four small silicon pads under the mounting screws, would futher isolate the fan. There are no reported vibration problems from any of the Beta testers, who have done a good job in real world testing.

Ray i would like to copy your flat box build.
Cool, cheers guys. That was my last concern with this camera. My trius is now up for sale.
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