01-27-2017, 11:19 AM
The reason why I always get a bit snappy about this "medium format" marketing blurb - which is for some of the backs BC mentioned no blurb, because these are very close to 56×42 mm (4/3 proportion) and have a diagonal of 70 mm, while "FF" (3/2 proportion) has 43.3 mm diagonal, leading to 1.6× crop factor. Okay, the proportions are more interesting than the crop.
Getting a squarish frame out of FF will cost me 1/3 of the sensor area, leading to 34 mm diagonal. From a "real" MF with 4/3 proportion I also loose 1/3 of the sensor area, but get a diagonal of 59.4 mm, Crop increases to 1.75×.
Getting a squarish frame out of FF will cost me 1/3 of the sensor area, leading to 34 mm diagonal. From a "real" MF with 4/3 proportion I also loose 1/3 of the sensor area, but get a diagonal of 59.4 mm, Crop increases to 1.75×.