ツイート 妄想エクスポウジア @fantasyexposure Sigma 100-400mm F5-6.3 DG DN OS to be announced on June 18 and cost $949 in US and 1.199€ in Europe: The new Sigma… https://t.co/9l7Ch0Tn8j 23:35 妄想エクスポウジア @fantasyexposure シグマが6月1…