Sigma official teaser for a product announcement on February 21st, 10 a.m. JST

For me this means I have to wake up early and live blog at 2am my time :( Sigma will announce those two new lenses: 500mm F5.6 DG DN OS | Sports 15mm F1.4 DG DN DIAGONAL FISHEYE| Art Sigma 500mm f/5.6 specs: Lightweight lens…less than 1,5kg and so the lightest telephoto prime lens you…...