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OK it's time to ask some questions. How can I check for misalignment of my corrector plate to my EDGEHD?? And How can it be corrected if it's out of aliment? The reason I ask is because I think my plate is off a little bit. But I really don't know what to look for if it is off  Thank you Orlando |
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| Sorry for the double post. I went to edit and ended up with two post. Sorry again |
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| Hello.Check if there is any markings on the plate coming from the factory, such as a small marking on the glass side of the plate, if you have this mark you need to align the markings, or you can contact the manufacturer. |
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Thank You newtonCs. I will take a look at it. I was just curious because everyone talks about collimation of the secondary mirror. But hardly anyone isn't talking about primary mirrors or corrector plates alignments. Until I see or read up more info in these area before I attempted to do anything. Plz send links if you think it will help me to understand. Thank You |
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Generally the plate misalign when it is taken out to clean, and this misalignment causes astigmatism in the image. greetings  |
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great  if i want perfect. I will need to reach deeper in my pockets for a HOTECH Advanced CT Laser Collimator. What a life |
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Hey! newtonCs Come to finding out my scope was still under warranty. So I shipped it out and they cleaned all mirror and corrector plate with a flat collimation test. By the looks of it so far Celestron really did amazing job cleaning up the scope. Man I can't wait for 1st lights on the new clean scope. But i'm sure it will be raining when I'm ready  |
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How great that the celestron did this work, now you will get good images with your scope, after the rain of course. |
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| There are 2 types of concerns when it comes to corrector plates (and I found about them the hard way). One, like mentioned above is when one removes the corrector plate to clean and doesn't put back in exactly the way it came out. Second is, after the corrector is back in, there are 4 little grub screws with silicon tips that hold the corrector in place, this will throw the secondary out of alignment and will make collimation all over the field impossible, if the secondary is not exactly squared with the primary and the visual back, your stars will look like little comets in the corners of the FOV and perfect in the center, to fix that there are a few visual tricks but they are not fast and simple and can be a very frustrating experience, the other option is to use the Hotech advanced collimator, one of the steps of the collimator procedure is exactly to check how centered your secondary really is, and even though the Hotech is very good and efficient, it is also quite frustrating. I'm glad Celestron took care of you, my advice is to leave the corrector alone, even if it looks a little dirty. |
