1 square foot (33x33) cm 1 square foot is put into the lens, usually with a Zi Ling edge of 6 cm around, and the finished product size is 33+6x2=45 cm, that is, the standard frame size is 45 cm.
1' x2' (33x66) cm painting center can be assembled into a lens with the same width around it, and the width of the sides can be 6 cm, 8 cm or 10 cm. You can also judge whether it is vertical or horizontal according to the direction of the center in the painting. The vertical center is 6 cm wide from left to right, the height from top to bottom is 10 cm, and the width from top to bottom in the horizontal center is 6 cm, and the width from left to right is 10 cm.
A 2-foot-square (66x66) cm painting center is installed in a lens. Usually, the width around the painting center is 7 cm. That is, the lens size is 80x80 cm.
3 feet of paper (50x 100) cm. If it is mounted as a vertical center, the width of the left and right sides is usually 5 cm, and the total width of the finished product is 60 cm. Add 10 cm up and down, and the total length of the finished product is 120 cm. That is, the lens size is 60x 120cm.
If the center of the painting is horizontal, the width of the upper and lower Zi Ling is usually 5 cm, the total height of the finished product is 60 cm, and the left and right sides are added with 10 cm, so the total length of the finished product is 60x 120.