“Categories 2” CT Archive
Term: Sample Category 2

Output ACF Image Caption

Goal

Output the caption of an ACF Image set on a term.

Context

This page is the Archive of a Custom Taxonomy named "Categories 2" (slug: category_2), which is assigned to the WP regular Posts.
The CT settings (CPT UI)

An ACF Image field (returning an array) is assigned to this CT to add a featured image to the terms.
The ACF Image field settings

1 term in this CT, named "Sample Category 2", with an ACF Image set (the image has a Caption alright).
Edit the "Sample Category 2" term

Method

Here are the Themer shortcodes used to output the ACF Image URL,  Title, Caption… all are returned.