The following is a summary list of image features:
- Framing arrows which define 4:3 and 3:2 aspect ratios assist in framing the target’s active area.
- A central multi-frequency zone plate on a black square can be used to set focus.
- Slightly slanted squares (approximately 5o) provide spatial frequency response (SFR) at multiple locations.
13.385 in. x 9.448 – 340mm x 240mm
ISO-122332014 Annex C