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The Bahtinov mask in astrophotography is very useful as it allows you to understand when the ideal focus for the instrument has been reached.
The Bahtinov mask in astrophotography is very useful as it allows you to understand when the ideal focus for the instrument has been reached.
The Bahtinov mask in astrophotography is very useful as it allows you to understand when the ideal focus for the instrument has been reached.
The Bahtinov mask in astrophotography is very useful as it allows you to understand when the ideal focus for the instrument has been reached.
The Bahtinov mask in astrophotography is very useful as it allows you to understand when the ideal focus for the instrument has been reached.
The Bahtinov mask in astrophotography is very useful as it allows you to understand when the ideal focus for the instrument has been reached.
The Bahtinov mask in astrophotography is very useful as it allows you to understand when the ideal focus for the instrument has been reached.