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Throughout this thread you haven't said what Takahashi refractor this is. Is it a doublet or a triplet refractor. If one of the lens element has shifted I guess this could cause the so diagnosed coma. Either way the skilled Takahashi technicians will make it better. I had to send my FS-78 back to Japan for a bit of a clean and alignment after one of the collimation screws came out completely and was rattling around in the dew shield. I was scared it scratched the front element of the objective which is the fluorite element.
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