Every lens has a specification called its "minimum focusing distance." For most lenses this is usually somewhere around a foot (304.8 mm). With my newest lens, I am still learning its quirks so I can better use it professionally. Today I tried to find its minimum focusing distance; the spec sheet that came with the lens said that it's 0.33 m (which works out to just over a foot as noted in the conversion above). But, here the subject is just 6 inches (152.4 mm) from the front element of the lens, and the focus is pretty sharp on it. So yeah, I can get pretty close and still focus with it. Win! And yeah, this is another macro from my N scale model railroad.

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