Eccoci ai rumors
Si vocifera che Sigma presenti alcune nuove ottiche
70-200 f2.8
300 f2.8
La voci arrivano da Canonrumors,
Che inoltre parla anche di un 70-100 f4
Eccovi le fonti
https://www.canonrumors.com/sigma-readying-two-new-ef-lenses-for-photokina-cr1/ (https://www.canonrumors.com/sigma-readying-two-new-ef-lenses-for-photokina-cr1/)
https://photorumors.com/2018/08/08/sigma-rumored-to-announce-two-new-lenses-for-photokina/ (https://photorumors.com/2018/08/08/sigma-rumored-to-announce-two-new-lenses-for-photokina/)