It allows you to take photos without removing the lens cap. No vignetting will be caused with this lens cap on. Compatibility with Olympus Tough TG-7 6 5 4 3 2 1 Olympus Tough TG-7 6 5 4 3 2 1 Olympus Tough TG-7 6 5 4 3 2 1 Olympus Tough TG-7 6 5 4 3 2 1 Only OM SYSTEM Tough TG-7 Olympus Tough TG-7 6 5 4 3 2 1 SD and Mirco SD Card.
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