The phrase "depth effect" refers to the perception of objects having distance or dimension. It means that things appear closer or farther away, giving a sense of space in a picture, painting, or video. Full definition
Some of the phones have dual camera setup so if you want to take portrait shots / pictures with depth effect go for dual camera phones. (suggestphone.com)
There is a dual - camera with 12MP and 8MP sensors combining for depth effects and other creative options. (9to5google.com)
This Manual discusses in depth the effect of various forms of interference in initial child custody cases. (divorcesource.com)