Sigma’s secret weapon – SD Quattro review, an incredible filmic 8K timelapse tool with infrared capabilities September 9, 2017August 15, 2017 by Andrew Reid (EOSHD) I’ve been shooting timelapses and infrared stills with the Sigma SD Quattro mirrorless camera. Foveon is a future bayer slayer. Sigma could end up ruling the sensor market for high end cameras in 10 years. Read moreSigma’s secret weapon – SD Quattro review, an incredible filmic 8K timelapse tool with infrared capabilities