At 1.4kg, a Toho FC-45X isn't really much lighter, if at all, than a Chamonix (045N1 weights at 1.38kg or 1.42kg depending on the wood, 045N2 is 100g heavier). It is indeed significantly lighter than a Ebony with similar bellow extension (45S or 45SU for example) or an Arca-Swiss.
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