Brian McBride replied to the topic 'Autofocus failure' in the forum. 2 years ago

I am not familiar with the code, but as far as I can see, the outstep multiplier is not used when computing the 'requestedPostiion' at which to start the second pass. In most cases when calling the setupSecondPass method its uses the default margin value of 2, except in one case when its running of road, it has a last fling with 0.5.

When I wrote 'initial step multiplier' I meant 'outstep multiplier'. Basically I'm suggesting that if it was preferred not to change the UI and create a parameter to allow the user to set the margin value, then using the outstep multiplier somehow might make sense.

Another route might be to figure out how to set a backlash value. I haven't figured out yet why that's disabled, but I'm guessing it might need a change in the GPhoto driver to enable it.

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