Back Focus adjustment on WO Flat 61A when using a 2" filter ?

Newforestgimp · 2021-03-01T13:55:37+0000

Hi All, Can anyone confirm if I need to adjust the default William Optics recommended 12.9mm Flat 61A DSLR spacing when adding a 2" screw in filter into the train ?

By Newforestgimp,
March 1, 2021 in Getting Started With Imaging

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Back Focus adjustment on WO Flat 61A when using a 2" filter ?

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