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  1. B

    KOWA TSN-4 conversion to 45 eyepiece

    I've done it! and this may sound radical but its simple, I bought an old TSN-1 that was damaged and changed the eyepiece end by unscrewing it and replacing it with the angled section. You must remove the first prism as it is no longer required, very simple to do this. Its going the other way...
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