fmeeran
New Member
are u sure u need an OS for sigma 50 150? i still use 50 150 without OS and it works well for me.
*just my info*..
OS/VR/IS gives you a 2 to 4 stop advantage when shooting handheld at low light. It just lets you get away with lower ISO when the subject is relatively motionless. It is especially useful if you are shooting at an upwards angle as you tend to be a bit more unstable.