Here’s a photo comparison of the OS system(optical stabilisation) on my brand new Sigma 17-70mm F2.8-4 DC Macro OS HSM. The photos is shot handheld in my livingroom in dim light, and heavily cropped. It’s clear for all to see that Sigma’s OS system is working pretty well.
Canon EOS 550D
70mm, ISO 200, f/4-1/8
