tdodd wrote in post #4098422
Hi. I shot and posted the video. The pins were taped, as they have to be when using an f/5.6 lens and any teleconverter on a no 1D series body.
The movement you see of the subject vs the focus point is actually due to the drift effect you get with IS turned on when using a tripod. I was using AI Servo, which is pretty much what I always use, and left my finger on the AF-On button - hence the drift in the first demo. I think for the second demo I just pressed AF-On briefly so you don't see the drift occur.
Hi. I shot and posted the video. The pins were taped, as they have to be when using an f/5.6 lens and any teleconverter on a no 1D series body.
The movement you see of the subject vs the focus point is actually due to the drift effect you get with IS turned on when using a tripod. I was using AI Servo, which is pretty much what I always use, and left my finger on the AF-On button - hence the drift in the first demo. I think for the second demo I just pressed AF-On briefly so you don't see the drift occur.
Thanks for the clarification 
