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This video is to help you decide if you are a coma corrector buyer and also to help people that struggle putting things to work with the Baader MPCC. I use a 12" f/5 GSO dobsonian reflector newtonian telescope, different eyepieces and ZWO ASI224 and ZWO ASI294 cameras with spacers and a low profile TS extension as my set up which works like a charm with this CC.
For various reasons, I find a correctly orientated image, (vertically & horizontally) as given by an Amici prism in a diagonal, much easier for me to use with my observing.
I absolutely loved the Baader Amici prism with the ClickLock. The build quality is lovely and it gave really great views - except when you try and use it on an object brighter than about magnitude 1.5, whereupon you see the infamous diffraction spike ruining your view.
I know this is a fairly common issue with prisms and with Baader Amici prisms in particular but I have also heard of people trying several and then finding one without the diffraction spike issue. Mine was bought from a reputable online only astronomy supplier on the USA west coast who assured me they tested the prism prior to my purchase but they obvioulsy did not. They did give me a refund in the end. I would really love to try and obtain another Baader prism but without the diffraction problem.
My question is, have you done the process of trying several prisms before getting a good one? Who did you use? (please feel free to PM me) Did you end going directly to Baader? I would do that ordinarily but I now live in the USA, not Europe. Have you another non Baader correct orientation prism that you could recommend to me ? (Although I have to say once you use a Baader diagonal with a ClickLock there really is no going back to the fiddly adjustment screws!!!)
Thanks for any advice, sharing of experiences or recommendations.
Baader Hyperion Eyepieces
5mm - £70
10mm - £70
24mm - £70
Or all three for £190
I bought these over on ABS a while back, used them a couple of times, and have never touched them again, so selling for future upgrade points.
They seem like perfectly OK eyepieces, but the Baader and TV zooms are perfectly good for my portable viewing, and take up less space and weight.
Price includes UK postage. Payment by bank transfer (preferred) or PayPal (buyer pays fees).