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Message: <blockquote data-quote="Jim M." data-source="post: 3334499" data-attributes="member: 60675">I'm hoping that the weight includes the tripod adapter, so the weight of the lens alone will be less.  As it stands, it is certainly much more attractive than the Olympus f4 300 mm, but it still weighs about the same as two Lumix 100 mm-300 mm lenses.  I would have hoped just adding an extra 100 mm of “reach” could have been done without doubling the weight of the lens.  (Though of course this lens should also have many other enhancements to the Lumix lens).I'm also eager to see what the maximum aperture will be at 300 mm.  Hoping for some small improvement on the Lumix here as well.  Would also make me feel better about carrying that extra weight around.</blockquote>