Quote:
Originally Posted by asimov
I still have some cerium oxide so I'm wondering if these scratches could be taken out by hand..?
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The scratches will be many times deeper than the parabolic correction, and probably not possible to polish out at least not in reasonable time. Your only choice is to just regrind the mirror , or just recoat it. Its possible that many of the scratches are just in the coating. It is not easy to scratch a mirror.
Could you post a photo of the surface?