Final answer:
To achieve sight picture/sight alignment, you need to follow two steps. First, close one eye and adjust your thumb so that it covers a landmark. Then, open the closed eye and close the other one, without moving your thumb. This will result in your thumb appearing in front of a different point.
Step-by-step explanation:
Steps to Sight Picture/Sight Alignment:
- Stretch your arm forward and extend your thumb, so that your thumbnail faces your eyes. Close one eye and move your thumb so that, looking with your open eye, you see your thumbnail covering a landmark.
- Then open the eye you had closed and close the one with which you looked before, without moving your thumb. Your thumbnail will now appear in front of a different point at the same distance.