Holy, holy, holy! I spent all day trying to figure out focus stack, and I finally got it to work!
So first of all, the problem is that the af lock forces the camera to find a focus while it's on auto-focus before it can shoot. This is ruining the focus stack because every time the focus stack adjusts, the camera would just readjust to what it thought the prime focus would be. This was the case in every type of focusing I tried.
I felt dumb when I realized how simple it is - just disable the af lock!
Go into your customizable menu #6 (page 303 of the online sl1 user manual) and here I changed my 0 to a 1, but I think 2 or 3 might work as well. Then go back, turn on follow focus and then while in live mode push the * button (You may need to push down the shutter halfway to see if you see the * sign on the bottom left of your screen). Congratulations! You have just disabled the pesky canon algorithm that compares your contrast and says you're out of focus. That's right, you've just made your camera you're b****. (Get it? Cause of the * button? )
Now go ahead and set your end point with follow focus and set up your stack focus point values and hit run. Voila, you have some perfect stops to go with your focus.
So first of all, the problem is that the af lock forces the camera to find a focus while it's on auto-focus before it can shoot. This is ruining the focus stack because every time the focus stack adjusts, the camera would just readjust to what it thought the prime focus would be. This was the case in every type of focusing I tried.
I felt dumb when I realized how simple it is - just disable the af lock!
Go into your customizable menu #6 (page 303 of the online sl1 user manual) and here I changed my 0 to a 1, but I think 2 or 3 might work as well. Then go back, turn on follow focus and then while in live mode push the * button (You may need to push down the shutter halfway to see if you see the * sign on the bottom left of your screen). Congratulations! You have just disabled the pesky canon algorithm that compares your contrast and says you're out of focus. That's right, you've just made your camera you're b****. (Get it? Cause of the * button? )
Now go ahead and set your end point with follow focus and set up your stack focus point values and hit run. Voila, you have some perfect stops to go with your focus.