So 31. Jul 2022, 14:39
Aus
https://www.pentaxforums.com/articles/p ... cus-c.htmlAutoFocus HoldThere seems to be a fair bit of confusion when it comes to AF Hold status and what it actually does.
I've tested this thoroughly to have a better understanding of it's use case. Contrary to what I've seen posted it does not help with tracking subjects coming towards or moving away from the camera. As a matter of fact, it will actually hinder Z-axis tracking.
What does AF Hold actually do?
Auto Focus Hold does what the name says. It
HOLDS the Auto Focus focal distance for a set period of time. Unfortunately, Pentax does not state what that time period is. The only options are Off/Low/Med/High with each one pausing/holding the AF for a longer period of time. Think of it as an Auto Focus Pause feature. It literally pauses the AF system.
Now that you know what it actually does, you can see how it would make tracking Z-Axis (subjects coming towards or moving away) less reliable.
OFF There is no pausing/holding of the AF at all. It tracks continuously and will jump focus if something gets between the subject and the camera.
LOW Very short pause/hold of the AF if the subject gets momentarily blocked by another object.
MED A longer pause/hold if the subject gets momentarily blocked by an object.
HIGH The longest duration of pausing/holding the AF focal distance in case the subject gets momentarily blocked by an object.
The
ONLY use case to use AF Hold for an advantage is when tracking subjects while panning along the X or Y Axis (Horizontal or vertical tracking/panning).
Bedeutet: AF Hold ist für tangentiale Querbewegungen gedacht, wo der Abstand zum Motiv sich nur langsam ändert, damit der AF nicht sofort wegläuft, sobald ein Zweig im Weg ist oder man das Motiv mal kurzzeitig aus dem Fokusbereich verloren hat. Bei radialen Bewegungen auf mich zu / weg wäre jede Verzögerung kontraproduktiv.
MfG Nuftur