chupacabra31 Offline Upload & Sell: Off
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I was just wondering if sigma OS is very subtle compared to say canon or nikon Image stabilization?
The reason I ask is that I picked up a 150 OS to use for portrait and macro when pointing the lens at portrait distances it does not seem like the OS is doing anything. I remember when I had a canon 100-400 you knew when it was on there was a clear difference in viewfinder shake.
I am thinking it is operational because when, I have the shutter button half depressed and I let go I hear a distinct thunk sound like the gyroscope mech or whatever it is has stopped spinning.
I have tried taking some pics that would normally need a much higher shutter speed when hand holding and it seems like it might be working. IE, ISO 400, f3, 1/50-1/80. The results look eh but noticeably better then with the OS off or am I not concentrating enough on keeping steady with it off. I think it works but it is just not like canon IS at alll. Can someone confirm this. Ty.
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