sw dob, defect on secondary

[sunshine185]

cant believe i have not noticed this before, but there seems to be a little defect in my secondary, i have had some great views with this dob so do you think it could be even better without this fault? also, would it still be in warranty even though i flocked the outside of it with a black sharpay pen?

[Moonshane]

I'd not worry. secondaries sometimes have marks where the clips were used in the silvering process. it may be this and will have no effect upon your views.

[sunshine185]

Thnx for that moonshane, you put my mind at rest.

[earth titan]

I have a small mark on my 12" lightbridge.

Can't see it makes any difference but then, it's always had it.

[Foggymike]

I don' think that will make any difference to anything. I'd just ignore it - you won't know it's there unless you're looking for it

[sunshine185]

I didn't know it was there until I sharpey'd the outside!

[Hals]

Ignorance is bliss !

Now you know its there it'll always be in the back of your mind, eating away at you when you think you can just make out that faint fuzzy !

Seriously though, as others have said, it's highly unlikely to affect your view.

[sunshine185]

Now that I've had some reassurance I'm not too bothered to be honest, had some super views so far with this dob, looking forward to plenty more.

[StarryBob]

An old friend of mine had a slight scratch on his secondary, you had to look for it but it was there and near the centre. The views looked fine to me but he was sure it was causing issues so he bought a new secondary from OVL I think it was, waited months for it to arrive and was all excited to fit it. We were at his house on an evening as he decided to compare the views before and after so changed it by torchlight. When collimated with the new mirror it was exactly the same neither of us could see even a minute difference. Old mirror sold on ebay and the guy was so pleased he sent a nice email to say so lol. Sorry for rambling but the point is if your view is ok then it is ok so don't worry

[knobby]

100 per cent agree with wot they said, iys small and so far out of focus from your target, its insignificant ...