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there is always some residual vibration which can be removed
Flattener Adjustment Distances
The Celestron Off Axis Guider addresses these challenges by:
This refractor telescope has all the great features of the original EDT-127075-CF but includes genuine HOYA’s premium FCD100 ED glass which is very similar in characteristics as OHARA’s FPL-53
Ultrahard and durable Ion-beam hardened coatings may be cleaned anytime without fear
FLAT68III longer adjusting adapter for WIFD GT81-M48 1.25" there is always some residualTo use this adapter, simply unscrew the original end adapter that terminates in the M48 male thread on the flattener and replace it with this longer adapter. The correct back focus setting specifications for the P FLAT68III with GT81 WIFD telescope is 2mm. This is part# AD M80 54 M48 Specification Male thread: M48x0. 75Female Thread: M80x0. 75Length: 54mm
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