Can you clean etalon?

[Nigella Bryant]

Hi all, as the title says, "can you clean etalon, inside of lunt 60mm, also dust on objective and dust on erf of double stack filter. Or is it best left alone. 

[NGC 1502]

If it were me, I’d email Lunt and ask their advice on etalon cleaning.

A best guess is that it takes a surprising amount of dust etc to make a noticeable difference, at least that’s what myself and many others have found with conventional optical components.

Ed.

[Nigella Bryant]

1 minute ago, NGC 1502 said:

If it were me, I’d email Lunt and ask their advice on etalon cleaning.

A best guess is that it takes a surprising amount of dust etc to make a noticeable difference, at least that’s what myself and many others have found with conventional optical components.

Ed.

My gut feeling is to leave well alone. 

[Peter Drew]

You can clean most optical components with the usual care, however unless the performance is being degraded, best to leave things alone.  On a Ha telescope you would probably only see dust particles on a Barlow or the blocking filter. If using a camera most likely on the sensor window.    🙂

[Merlin66]

I agree 100% with Peter.....