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the magnifiaction can be increased beyond 1.6x if you have increased the distance with the barlow in the train- small increases in length near the barlow can easily get it to 2x - a mak does the same thing with the shifting mirror - changes the focal length - which is what you have done by moving the struts..you should not be getting double magnifcation though - did you have the barlow screwed right in - & everything sitting flush in focuser & ep's in BV'er
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