Looking at both it made me wonder how things have changed in speed, quality and in general. Or has it when it comes to processing the photo.
Canon 20D Sigma 170-500mm @ 500mm, 1/1000 sec, f/9, Mode: Manual, Metering: Evaluative, ISO: 800, AF mode: AI Servo AF
Canon 5DMK111 Canon 140-560mm @ 560mm,1/2500 sec, f/8, Mode: Tv, Metering: Partial, Exp comp: +2/3, ISO: 500 (auto), AF mode: AI Servo AF

