Sigma 150-500 mm APO DG HSM OS video photo field test

Photo test 2:06 My first day with the super telephoto lens Sigma 150-500 mm f5-6.3 .I have tested this lens in the fields and swamps mainly with the birds, and the results was pretty good, I mounted it on Sony Alpha a37 SLT camera (aps-c sensor). It give best sharp results from f/8 up to f/10 at the longest focal lenght (500 mm). AF is very good, speed and accuracy are great with Sony Alpha Slt camera. Music: Real world - Silent Partner (YouTube audio library)