Quote:
Originally Posted by erick
Taking out the second o-ring makes sense. I should have one tomorrow to play with.
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In fact, the one you're receiving has had that mod already taken care of
I put the rear ring up the front where the other ring is (you can remove it altogether if you like, I just didn't want to lose it). Collimation is far more predictable and easier this way.
Cheers
Steffen.