1. Subscribersonhouse
    Fast and Curious
    slatington, pa, usa
    Joined
    28 Dec '04
    Moves
    53223
    26 Nov '10 12:221 edit
    http://xmb.stuffucanuse.com/xmb/viewthread.php?tid=7300

    I like how he visualizes the focal point, great video.

    The mirror in question is 2 square meters, which works out to about 1.6 meters in diameter, about 5 feet across.

    Also it has to be pretty darn close to optically perfect to get that fine a focus.

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