Table 1: Film sheet sizes.

Field Size (cm2)

Axial Film Size (cm2)

Longitudinal Film Size(cm2)

1 × 1

4 × 4

3 × 12

2 × 2

5 × 5

4 × 12

3 × 3

6 × 6

5 × 12

5 × 5

8 × 8

7 × 12