I have read somewhere that disabling the lens drive function using
p-cfn function will speed up AF. just wonder how it works n how will this function impact on other lenses mounted on the same body wil that same p-cfn function.
it appears to me that this is a piece of ultra high precision glass thus the drive step is very small (correct me if incorrect)
many thks
jeff
p-cfn function will speed up AF. just wonder how it works n how will this function impact on other lenses mounted on the same body wil that same p-cfn function.
it appears to me that this is a piece of ultra high precision glass thus the drive step is very small (correct me if incorrect)
many thks
jeff