Traditional Culture Encyclopedia - Photography and portraiture - How big is the 4R in photography?
How big is the 4R in photography?
The size of the photo is different at home and abroad. The domestic names are 5 inches, 6 inches, 7 inches... which refers to the length of the longer side of the photo; the international names are 3R, 4R, 5R..., the value is taken from the shorter side of the photo.
1 inch = 2.54cm
For example, the size of a 5-inch photo is 12.7cm×8.9cm, converted into inches, that is, 5 inches×3.5 inches
The domestic name is 5 inches (take the long side), and the international name is 3R (take the short side).
The following is a size comparison table of common photos:
Specifications (inches) Dimensions (cm)
8K [1 inch] 2.54×3.81
Passport[1.5 inch] 3.4×4.9
4K[2 inch] 3.6×5.5
3R[5 inch] 8.9×12.7
4R[ 6 inches] 15.2×10.2
5R[7 inches] 12.7×17.8
6R[8 inches] 15.2×20
8R[10 inches] 20.3× 25.4
10R[12 inches] 30.5×25.4
10RW[15 inches] 25.4×38.1
- Related articles
- Su Huilun times
- How about Xiamen Milan Co., Ltd.
- What poem does the fish play between lotus leaves come from?
- Chengdu fan photography photo
- Xu Jiaxiang Photo Contest
- What is the framing of photography?
- Recommend spring mountaineering sites in Qinghai
- 20 18 What are the activities of Wuhan Huazhong International Auto Show?
- Apple or an alien notebook, which is better, design or photography?
- Please wait for the big picture of this cat picture online. Thank you.