Refinishing 16-inch mirror

I'm thinking of having my 16-inch (2-inch thick) f4.5 mirror refinished, which I understand might improve its optical performance somewhat and enhance its reflectivity. It has worked great for viewing the Messiers, but it doesn't seem to handle higher powers very well regardless of collimation. Has anyone had this done, and what were the results? - I don't want to get into doing the work myself, so costs, and the delay time, are a factor. - I'm assuming that the finisher would first examine the mirror and let me know whether he would recommend the work. Anyone have recommendations for someone who might be available?

What's a reasonable estimate for a fairly decent, but not necessarily professional quality job? Or, is it not usually worth the cost, meaning that I should instead consider trading up to a better scope? - This is a rather basic Telekit Dob with an old D16 mirror.

Thanks,
Jim
.

Relevant Pages

  • Re: Alternatives to Lens Arrays
    ... I wanted to tell you another way to reduce tracking costs is to ... make really big concentrators and move them minimally. ... And while you might be able to get your mirror costs down, ... we ALWAYS have to plan our work and then work our plan. ...
    (sci.energy.hydrogen)
  • Alternatives to Lens Arrays
    ... I wanted to tell you another way to reduce tracking costs is to ... The problem is you want to get your cost per sq meter as low as ... One 'big' mirror I created was a strip of PET plastic of very long ...
    (sci.energy.hydrogen)
  • Re: Alternatives to Lens Arrays
    ... I wanted to tell you another way to reduce tracking costs is to ... And while you might be able to get your mirror costs down, ... - and other half merely exposes the iron oxide to the intense solar ... we ALWAYS have to plan our work and then work our plan. ...
    (sci.energy.hydrogen)
  • Re: Alternatives to Lens Arrays
    ...  I wanted to tell you another way to reduce tracking costs is to ... the mirror stops and the comb begins and folds it at an angle between ... - and other half merely exposes the iron oxide to the intense solar ... we ALWAYS have to plan our work and then work our plan. ...
    (sci.energy.hydrogen)
  • Re: Alternatives to Lens Arrays
    ... I wanted to tell you another way to reduce tracking costs is to ... One 'big' mirror I created was a strip of PET plastic of very long ... I thought it a "done deal" to provide $.07 per Wp solar energy for your ... Sometimes we need to plan our work then work our plan. ...
    (sci.energy.hydrogen)
Loading