Sony 終於進軍大光圈遠攝長鏡，仲要係現時其中一支最輕既 400mm f/2.8 ** 跪求字幕！** 如果你鍾意我既片，鍾意到想幫下手，可否請求你幫我加字幕呢？你唔駛一次過加哂成條片架，所有人都...

1KG lighter than the other 400mm ƒ/2.8 lens is Sony's first step into sport/wildlife tele-lens, and ...