Medium format is any camera format that makes use of the 120 film size or utilizes a digital imaging sensor that mimics that size. This format captures images that are slightly smaller than the large format film size (102x127mm). However, they are much bigger than those taken using full-frame sensors or 135 film. There is no standard size for medium format and it normally varies between manufacturers.
Medium format cameras are known for producing extremely high-quality images. This is why this type of camera is typically used in fashion and advertising photography.
