A pancake lens is a compact most suitable lens prized for its portability whilst nevertheless providing exquisite optical

https://wiki-mixer.win/index.php/How_To_Maximize_Depth_Of_Field_With_An_Understanding_Of_Focal_Length!

A pancake lens is a compact most well known lens prized for its portability at the same time as nevertheless offering wonderful optical efficiency—ideal for boulevard photography or journey wherein space is at a premium.