Quote:
Originally Posted by Renato1
The chap who sold me my Vixen APO stongly advised me never to be tempted to tinker with the collimation screws on the lens.
Cheers,
Renato
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If the elements are all in one cell there's nothing to fear from tilting the cell to collimate; the newer Vixens with a third element towards the rear of the tube that might be a different story.