Thread: ft worlds
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Old 2nd September 2011, 09:07 PM
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rich rich is offline
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Join Date: Nov 2008
Location: Shebbear, N Devon
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Blue light has a shorter wavelength. Comes to a different focus.

Get the same effect in our pipe range, it's made out of blue barrels, and the light inside is blue. Targets rangefind differently from being out in the open.
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