[m11 (Mel)]

Hi N1,

Thanks for that. I have unscrew the pt completely. Just need to get it focused i guess and then adjust the pt.

Thanks again for your help.

Mel

Originally Posted by N1

Hi Mel, as the manual says, make sure you equalise the PT to ambient pressure first by unscrewing the black cylindrical tuning handle.
At that aperture no matter how low the solar activity level, the disk seen in H alpha will never be completely featureless.
If you can see sunspots as black areas (that's what the black dots may have been) on an otherwise blank looking disk - sort of like a red version of a white light solar image - it's not on band yet and needs more tuning.

Nice scope, have fun!