Bradley connor Posted April 13, 2022 Share Posted April 13, 2022 (edited) Hi sorry for poor image quality, when I shine a light on My secondary mirror it gives of a weird tint with a circle in the centre of the mirror like In the photo any idea why the mirror looks like this? Could it be the coating or a thin layer of dust? Edited April 13, 2022 by Cornelius Varley text colour Link to comment Share on other sites More sharing options...
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