2014-03-30 重量比較 意外と重くなってない? α57 + 18-135mm = 618 + 398 = 1016 D7100 + 17-50mm f/2.8 = 765 + 565 = 1330 (+314) α57 + 70-300mm = 618 + 765 = 1383 D7100 + 70-200mm f/4 = 765 + 850 = 1615 (+232) α57 + 18-135mm + 70-300mm = 1781 D7100 + 17-50mm f/2.8 + 70-200mm f/4 = 2180 (+399) ついでにサイズも