Quote:
Originally Posted by CalvinKlein
Well I can report that the eBay Geoptik work-alike is excellent.
I managed to find a 7.5mm T2 extender (Baader - courtesy of Astro Anarchy).
So I now theoretically have a strong & squarely coupled and perfectly spaced solution to the Samyang 135mm-ZWO camera tilt, mounting and spacing problems.
It seems to be such an elegant solution to everything else I (and others) have tried.
So we have 19mm for the EOS-T2 adapter, 7.5mm for the Baader extender, 11mm for the ZWO extension ring, and 6.5mm to the sensor = 44mm total. I sure hope I have my maths and flange-focal-distance theory correct !
Hopefully tonight or tomorrow morning after 5 weeks of cloud I will get to try it out.
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Thanks for the update, Kelvin! I might have to get one of those adapters to add to my collection. I also have one on the way from Astro Hutech.
Are you using a UV/IR blocking filter with the ASI183? I tried using the ASI294 without one and the results were truly awful.
Cheers,
Rick.