Surface chips in an F8 Newtonian mirror
Posted 13 December 2012 - 11:02 AM
I have a 10" F8 newtonian mirror that I ground back in the 70's. So it has some personal noastalgia value. Back in the day, the secondary holder failed and let the diagonal mirror fall and knick two small pits in the surface. It would have only been one pit but it bounced so two small chips.
Still seems to work just fine, and a year or so ago I had it re-aluminized.
My question is this: Should I leave the pits shiny or should I paint them black?
and also, How signifigant a problem is this? Should I send it out to be reground? the chips are less than a wooden pencil diameter.
Posted 13 December 2012 - 01:33 PM
Posted 16 December 2012 - 03:38 PM
Posted 16 December 2012 - 03:44 PM