I want to buy the sigma 150-500mm but only found this link with one available, question is does it look legitimate to you? I was expecting availability from bigger stores but none has it available or in stock.
Amazon.com: Sigma 150-500mm f/5-6.3 DG APO OS (Optical Stabilizer) HSM AutoFocus Telephoto Zoom Lens for Pentax AF Cameras: Camera & Photo
I also found in Dpreview the following so now I am confused:
Sigma releases 150-500mm f/5-6.3 for Sony & Pentax: Digital Photography Review
Thank you for your help in advance