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Title: Is this normal????
Review: I've had my pen for just a few days, and when I gently touched the pad end it left a dark black residue on my finger. Probably a dumb question, but IS THIS NORMAL???? I'm a little worried this black material will transfer to my lens. Has anyone had this happen? On a positive note, it seems like it would be good at cleaning a spot from the extreme perimeter of your lens, where it meets the metal housing. I would appreciate any comments.
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