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Charged Gas Light RodPosted by none (New York, United States) on 3 December 2006 in Miscellaneous. During a physics lab concerning optics. I have no idea about the physics behind this as many other things distracted me during that period of day. This was probably the first day I actually used my 17-40mm. I believe the focal point is about a mm or two off as it's really, really hard to focus without glasses in a dark room with no tripod. I think I'll be posting my current magnum opus tomorrow.
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Canon EOS 20D |