Show ACF field data with SLB images

I am using SLB in conjunction with default WordPress galleries. The site has ACF fields connected with images, to supply stuff like photographer credit, location and some EXIF data.

EXIF (if available) is already attached to each image, and photo credit and location are attached to each image as ACF fields.

I have studied the guide to building a custom theme for SLB, but cannot figure out how to include this extra info. I see {{item.title}}, {{item.description}}, etc, but cannot determine how to get {{item.exif}} or any of my other custom fields.

Is there something special I need to do to add other sub-fields to {{item}}? I can do get_field(“location”) in PHP code, but how does that translate to layout.html?

Thanks in advance for any answers and/or guidance.