Traditional Culture Encyclopedia - Photography and portraiture - 12 inch photo as big as a4?

12 inch photo as big as a4?

Since it is the size specified in the exhibition, 12 inch means that the long side of the photo is 12 inch, which means that 12*2.54 is about 30 cm. The long side of A4 paper is about 12 inch. If the requirements are not high, there should be. Because photographic works will not require the size ratio of 10: 12.