Measuring The Exact Distance To The Subject; Af Track Duration (Movie) - Sony ILCE-5100 User Manual

subject to be focused is changed. This mode is useful for shooting impressive images.
[74] How to Use

AF Track Duration (movie)

You can set the duration for AF tracking in movie mode.
1. MENU →
Menu item details
High:
Sets the AF Track Duration to high. This mode is useful when recording movies when the
subject is moving quickly.
Normal (default setting):
Sets the AF Track Duration to normal. This mode is useful when you want to keep the focus
on a certain subject when there are some obstacles in front of the subject or in crowded
places.
[75] How to Use

Measuring the exact distance to the subject

The mark shows the location of the image sensor*. When you measure the exact
distance between the product and the subject, refer to the position of the horizontal line.
The distance from the lens contact surface to the image sensor is about 18 mm (23/32 in.).
*
The image sensor is the part that converts the light source to a digital signal.
Using shooting functions
(Camera Settings) → [
Using shooting functions
Adjusting the focus
AF Track Duration] → desired setting.
Adjusting the focus