[vk5cp (Chris)]

Thanks Mardy. Whist the marks look like they are on the back of the mirroI can see them from the front of it. I will try and take a photo on the weekend and post it.

The black image is blurry, I understand what you mean about the secondary mirror obscuring the field of view. I thought I might not have got it adjusted correctly., When I see the moon the edges are very sharp, its just the middle thats a bit blurry.