Macro lens system and imaging apparatus
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United States of America Patent
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Apr 11, 2017
Grant Date -
Sep 3, 2015
app pub date -
Feb 25, 2015
filing date -
Feb 28, 2014
priority date (Note) -
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Abstract
A macro lens system includes, in this order from an object side: a positive first lens group; a negative second lens group; a positive third lens group; a negative fourth lens group; a positive fifth lens group; and a negative sixth lens group. The first lens group is constituted by three lenses. The second lens group, the fourth lens group, and the fifth lens group are independently moved in the direction of the optical axes thereof when focusing from an object at infinity to an object at a most proximate distance. The second lens group moves toward the image side and the fourth lens group moves toward the object side when focusing from an object at infinity to an object at a most proximate distance.
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