"Real depth" refers to a high level of understanding or insight about a person, topic, or situation. It means having a genuine understanding that goes beyond surface-level or superficial knowledge. Full definition
A good mix of photos with real depth of field and monochromatic filters will earn you new followers and most importantly change the perception of photography by adding a new dimension. (indianexpress.com)
Generally, people do not study engineering until their second year at a university and not in real depth until their third year. (tultican.com)
Solid pacing and characters with real depth that we come to care about make this a quite entertaining slice of life. (rottentomatoes.com)