The difference between a full-frame camera and a medium-frame camera

The difference between a full-frame camera and a medium-frame camera mainly lies in the size of the photosensitive element.

Quan Huafu, also known as 135 frame, has a size of 36mmX24mm, which is consistent with the size of 135 film commonly used in the film era. Quan Huafu's statement is relative to APS-C format and half angle.

Medium format refers to the imaging size between 36×24mm Quan Huafu and 4×5 inch large format. The commonly used imaging sizes of medium format are 645, 6X6, 6X7, 6X9, and 645 refers to 6X4.5(cm).

Tip:

Schematic diagram of the dimensions of photosensitive elements in various frames:

The blue line is Quan Huafu, the pink line is the middle frame, and the black side is the big frame.