string on a 1/4-20 screw mounted to camera tripod hole, other end on something that will be snug under your foot/weight (like a fat 2" washer).
like Weebl said.
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2009 135i | space grey | sport | navi | hifi | heated
dinan stage 2 software | bmw performance exhaust
kw v2 | hotchkis front sway | vmr v710
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