Jim,
Pardon me for jumping and plugging my own business, but I do coatings for astronomical mirrors. I will also test your mirror for free. I don't do re-figuring so if your mirror needs work it will have to be sent elsewhere. The testing consists of setting your mirror up in autocollimation with an optical flat and using a Ronchi tester. I can't provide a numerical result, but I can give you an expert opinion on the mirror's overall quality, and whether it's worth re-coating. See my website here on Astromart or goto nova-optical.com
Thanks
Steve Dodds
Pardon me for jumping and plugging my own business, but I do coatings for astronomical mirrors. I will also test your mirror for free. I don't do re-figuring so if your mirror needs work it will have to be sent elsewhere. The testing consists of setting your mirror up in autocollimation with an optical flat and using a Ronchi tester. I can't provide a numerical result, but I can give you an expert opinion on the mirror's overall quality, and whether it's worth re-coating. See my website here on Astromart or goto nova-optical.com
Thanks
Steve Dodds
