hi all,just picked up a used 150-600 con. i have a few questions, on a 70d should i be able to see the os working in the view finder? on my olympus em5 i can see the os very clear in the viewfinder. on my canon 70-200 i can hear the is working,when i have os on or off i don't really see a difference in the view finder.can u hear the os on this model?
As Immaculens said, you need to get the dock and switch the OS to dynamic. That will take care of that issue.
That is not correct, although of course a higher shutter speed helps with any lens.
This is at 1/320 handheld.