I have started to use Back Button Focus on my Canon 5D mk111 but I have a question.
For moving subjects (steam trains) coming from left to right…….
1: When the train gets to my middle focus point do I hold the back button down and wait until its near the right side before firing off my shots?
or
2: Do I set my focus points where I want to take my shot and wait till the train is there then hold the back button down and fire away?
For moving subjects (steam trains) coming from left to right…….
1: When the train gets to my middle focus point do I hold the back button down and wait until its near the right side before firing off my shots?
or
2: Do I set my focus points where I want to take my shot and wait till the train is there then hold the back button down and fire away?
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