Is it possible to clean a telescope mirror?

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Discussion Overview

The discussion centers around the feasibility of cleaning a telescope mirror, particularly in the context of an amateur astronomer considering the condition of a 6" Meade mirror that has not been used for fifteen years. Participants explore options for cleaning or recoating the mirror, weighing the pros and cons of DIY versus professional services.

Discussion Character

  • Exploratory
  • Debate/contested
  • Technical explanation

Main Points Raised

  • One participant suggests that sending the mirror out for recoating is advisable, noting that the coating likely needs professional attention after years of inactivity.
  • Another participant mentions a specific service, Optic Wave Labs, providing pricing for recoating services, indicating it could be a cost-effective option.
  • A different viewpoint expresses distrust in Optic Wave Labs, citing personal negative experiences and warning others to be cautious, while acknowledging that there are mixed reviews about the service.
  • There is a general inquiry about whether cleaning can be done by an amateur or if professional help is necessary, reflecting uncertainty about the best approach.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the best course of action. While some advocate for professional recoating, others express skepticism about specific service providers, indicating a divide in opinions regarding the reliability of professional services versus DIY cleaning.

Contextual Notes

Participants express varying levels of trust in professional services, with some sharing personal anecdotes that highlight the risks involved. The discussion does not resolve the question of whether an amateur can effectively clean the mirror without professional help.

Who May Find This Useful

Amateur astronomers, particularly those with older telescopes or mirrors in need of maintenance, may find this discussion relevant.

jim hardy
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not to hijack - but seems not worth a separate thread.

Is it possible to clean a telescope mirror?

About 30 years ago i bought Dad a 6" Meade mirror out of Sky&Telescope magazine.
We built a simple Newtonian with a redwood twelve sided tube. Local astronomy club deemed it "handsome" which Dad enjoyed tremendously.

It has now sat for fifteen years since his death and is quite dusty.

Is this something an amateur can do, or should i mail it someplace?

Suggestions welcome -

old jim
 
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You will be better off sending the mirror out and getting it recoated. After sitting around that long the coating will almost certainly need professional help. Optic wave labs, for example, [http://www.opticwavelabs.com/coating.php] will strip and recoat a 6 inch primary for around $50, and the secondary for $30 [perhaps less]. That is not a bad deal.
 
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thanks, chronos - that'll be the plan.

old jim
 


jim hardy said:
not to hijack - but seems not worth a separate thread.

Is it possible to clean a telescope mirror?

About 30 years ago i bought Dad a 6" Meade mirror out of Sky&Telescope magazine.
We built a simple Newtonian with a redwood twelve sided tube. Local astronomy club deemed it "handsome" which Dad enjoyed tremendously.

It has now sat for fifteen years since his death and is quite dusty.

Is this something an amateur can do, or should i mail it someplace?

Suggestions welcome -

old jim

Personally, I won't do business with Cary at Optic Wave Labs. Too risky. He hasn't taken any of my money but he has wasted a lot of my time. Search Cloudy Nights for the many tales of woe... and just as many happy endings. If you've already jumped in then good luck!

I think you'll need it.
 

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