Size Distortion: increase in the object’s image size compared to its actual size
- SID
- OID
Increasing SID will decrease magnification
Decreasing SID will increase magnification
Increasing the OID increases magnification
Decreasing the OID decreases magnification
Shape Distortion: a misrepresentation of an object’s image shape
- Central ray alignment of the x-ray tube, part, and image receptor
X-rated 