380Fine-tune focus for up to 20 lens types. AF tuning is notrecommended in most situations and may interfere with normalfocus; use only when required.AF Fine-TuneG button ➜ B setup menuOption DescriptionAF fine-tune(On/Off)• On: Turn AF tuning on.• Off: Turn AF tuning off.Saved valueTune AF for the current lens(CPU lenses only). Press 1or 3 to choose a valuebetween +20 and –20.Values for up to 20 lenstypes can be stored. Onlyone value can be stored foreach type of lens.DefaultChoose the AF tuning valueused when no previouslysaved value exists for thecurrent lens (CPU lensesonly).Move focal pointaway fromcamera.CurrentvalueMove focalpoint towardcamera.Previousvalue