Thread: film on optics
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Old 17-02-2017, 04:03 PM
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Shiraz (Ray)
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Join Date: Apr 2010
Location: ardrossan south australia
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Quote:
Originally Posted by Wavytone View Post
Ray,

Certainly hazy films on the optics don't help. But... how old is the scope ? It may be simply that your primary needs recoating.. the coatings don't last forever and scattered light is one of the consequences of a mirror in need of a refresh.
thanks, that is the next step if the cleaning does not do the job.

the mirrors are 3 years old. There are a few minor imperfections, but overall, the coatings look pretty sound. However, we regularly get winds blowing in off the sea, so salt corrosion is always a possibility, as the bolts on the EQ8 attest.

Last edited by Shiraz; 17-02-2017 at 04:13 PM.
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