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Message: <blockquote data-quote="Etiennef" data-source="post: 3419373" data-attributes="member: 131307">I actually went for the O-ring solution for this Trinovid. The extra 1,5mm or so is sufficient to avoid eyelash smears in most cases. It was a bit fiddly to get them on since you have to keep them in position while you tighten the original eye cups. If they fold over themselves, or lose their alignment half way through tightening, you basically have to start over... But once tightened and in place they stay put and look good! I also included an extra pair of smaller o-rings to ensure that no dirt can come in under the eye cups from around the ocular lenses.-The other option with "custom" eye cups I used on my other Trinovid (the one that's getting a new skin!). I'll update that thread with my progress very soon!</blockquote>