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My Bahtinov mask has 8 spikes instead of 6


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8 minutes ago, tooth_dr said:

Thanks gonna make it tricky! Have you a photo of your mask? New phenomenon and previously working ok?

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Used twice many months apart. Thought I must have done something wrong the the first time  so I gave it another go. Same result both times. I was using it with a 130pds Newtonian.

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