Lens coating

[LeeB]

Hi could anyone recommend a company to recoat a lens. I recently purchased a couple of scopes on eBay and one an 80mm refractor turned out to be a rather nice triplet apo. But could do with new up to date coatings, hence the question..

[ronin]

You could try Kingsview Optical http://www.kingsviewoptical.com

I contacted them once about a repair on a lens, they were at least willing to talk which others were not.

I see they now advertise Repair and Refurbishment.

Will say I never followed up getting the lens repaired - half the reason being I cannot lay my hands on the lens.

Be aware that an antireflection coating is very well adhered to the glass surface. it is not a case of wipe it off with a "magic" chemical so the cost of removal and replacement may be a bit on the high side.

As said they were pleasant to talk with and maybe I should have followed up, they will want to see the lens which with you being in Derbyshire may not be so easy as if you post it and they give a high cost (too high) then you have already suffered shipping cost both ways.

There are others and maybe a 30 minute google search might turn up something closer.

[HD-AP]

Lens coatings

These day's are multicoatings not the old mag flourite types and are fused to the optical surface so a recoat means a refigure of the og making it uneconomic in tha a new object glass would probably be the cheaper option

[LeeB]

the lens in question is an early triplet, and while not on par with the very latest trips is still a nice project, it currently has either no coatings or very little, so I think removal wont be an issue. In star tests the lens performs excellently with perfect stars , and no discernable chromatic ab. the three elements are oil seperated and are nicely mounted in brass cell. 

[Peter Drew]

My 5" F15 triplet is similar, no coatings but two of the components are oil spaced. The performance is excellent (refigured by Horace Dall) and I wouldn't care to risk having it coated, modern hard coatings are applied with considerable heat in the process AFAIK. 

[LeeB]

Sage advice I will leave as is:  thanks for all the help..