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5micron Or 12.???

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Posted by Rick on October 25, 2001 23:00:57 UTC

Hello All;
Just got done reading A.T.M's Archives, about scratches, heres the situation, I do have one minor sleek, not really a scratch and it is in the general area that will be covered by the secondary,(center of mirror) not really a problem because i am sure it will disapper when i polish, but my question is this>>> after a very intense study of the surface of the mirror, i've noticed some very small pits, (very small) presuming they are left over from 12 micron size since i went to the 5 micron,should i worry about these???. I was reading in the archives that most go from 12 micron to polishing,(some from 25 -30 micron) if this is so,then should these polish out or do i have to have even pit size all the way through. i do understand that no matter how much you grind with any one size of grit, you will always have some other pits, its the nature of glass, but are my concerns resonable or should i just polish, hate to do the 5 micron again, was a bugger of a time, but i could grind the glass back to the 12 micron, if i must..........Please let me know what you think, am i, or just over concerned. Thanks

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