|
Primary Lens inside has mottling.
Sky Watcher 150ED Super APO.
The scope being a refractor is fully sealed, that's why I bought it.
Whilst cleaning the outside of the primary, the sun was at just the right angle,
and I could see mottling on the inside of the lens.
Looks like moisture has condensed and then dried.
Can I pull out the lens?
I thought the scope might be nitrogen filled, but obviously not.
|