| 摘要 |
A selectively positionable lens cover is disclosed comprising a lens housing volume and comprising an arcuate lip portion for the selective engagement to and disengagement from a lens. The lens cover further comprises a first engagement structure whereby the first engagement structure may be releaseably engaged with and removed from a second engagement structure. In a preferred embodiment, the lens cover further comprises an aperture having a first longitudinal axis whereby the first engagement structure may be selectively engaged with and removed from the second engagement structure in a first position that is substantially aligned with a user-defined second longitudinal axis.
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