Cleaning the secondary spot on a Mak

[Stu]

Be interested to hear from anyone who knows the best way to clean the secondary spot on a Mak.

I took the front plate off mine a while back to get rid of a dead spider (!) and noticed a largish black spot on the secondary. I am assuming this is responsible for the disrupted diffraction rings I've been seeing and wondered what the best approach is regarding cleaning? I assume it is a first surface mirror and probably same risk of scratching as a primary mirror?

I am actually quite tempted to take the scope back to OO after PSP to fully sure it and collimate it but would ideally like this gone so I get some decent views if poss.

Many thanks,

Stu

[nightfisher]

Hi Stu, i cleaned the mirror on the corrector with my old omc 140, just use a tiny bit of baader fluid with suitable soft cloth, afterwards you may have to "huff" some breath on it and give it another wipe with cloth, i would advise against other option, wont post about it hear, pm me if needed

[JamesF]

That's what I did when I cleaned mine.

James

[Stu]

Thanks both, will give that a go and see if it budges.

Cheers

Stu

[jambouk]

That's how i cleaned mine too. Held the hover pipe near it too (with another soft cloth held over the end of the hoover pioe with an elastic band) to help remove any remaining fibres.

James