SIGMA AF 150-500 mm F/5-6.3 APO DG OS HSM video test

SIGMA AF 150-500 mm F/5-6.3 APO DG OS HSM (for Nikon) video test on the m4/3 Panasonic LUMIX GX7. Focal lengths 150-200-250-300-400-500 mm were tested. Camera crop factor = 2X. Additional EX. Tele Converter 2X available in camera without loss in quality. Shots made with a "standard" zoom lens at 28 mm and 80 mm are shown for comparison. Shooting distance = 600 meters.