found here
www.sonyalpharumors.com

Sony 200-600mm and 600mm FE officially announced! - sonyalpharumors
USA Preorders: Sony 200-600mm FE at Amazon, BHphoto, FocusCamera, BuyDig and Adorama. Sony 600mm FE GM at Amazon, BHphoto, FocusCamera, BuyDig and Adorama. EU

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