|
Yes, I was thinking along these lines.. The only question is, how good those cheap mirrors are.. I have seen couple of pretty horrible things recently.
And of course, all will depend on what needs to be done. Chi Quin Optical (Isaac) seems to be OK and they are willing to take this job. I talked with him and I am only waiting for quotation for repolishing. Re-coating for 10" mirror is AU$ 229.00 (GST included?). The new 10" kit from Coulter optical is US$399 F5, 1/10 wavefront)
All others are either booked or not providing necessary service. For instance, Astro Optical Supplies said they will do it, but they do not guarantie that the whole old coating will go off from glass (SiO protective coating is the problem for the process they are using to remove aluminium, and they told me to order the new mirror just in case... But, those mirrors are coming from some cheap supplier from China and they only guarantie 1/4 wavefront accuracy, which is not enough for me, so I decided not to go with them).
|