[Cory Van dorn]

This worked beautifully! Final expression on the camera focus distance. Thank you so much.

a = thisComp.layer("Camera Focus").effect("Title Focus")("Slider")
b = thisComp.layer("Camera Focus").effect("Productions Focus")("Slider")

c = thisComp.layer("Camera Focus").effect("Slider Control")("Slider");
f = linear(c, 0, 100, a,b)

[Cory Van dorn]

So now I’ve got two sliders each with the auto focus on, if I type a or b the camera focus switches between the two layers.

I need to key-frame the switch and it needs to be gradual.

How do I do that? Inexperienced expressionist here.

a = thisComp.layer("Camera Focus").effect("Title Focus")("Slider")
b = thisComp.layer("Camera Focus").effect("Productions Focus")("Slider")