Because of high demand the Sigma 300-600mm FE will ship in October only if you order the lens now

Sigma 300-600mm preorders at BHphoto. Amazon. Adorama. FotoErhardt. Fotokoch. WexUK.

Despite the recent price increase of $600, demand for this lens is so high that if you order it today, you will have to wait at least two months to receive it.