Answer:
You are using the <u>Linear Perspective</u> principle.
Explanation:
This principle creates <u>an illusion of depth</u>. Instead of drawing a river <u>with a flat appearance, you decided to create depth using lines that part from the canvas center (horizontal line), begins to separate themselves (vanishing point) and ended on both sides of the canvas (parallel lines). This simple process just works if you use its three principles: parallel lines, a vanishing point, and the horizon line. </u>
Answer: Fisheyes are almost always used for underwater photography where there are no straight lines to worry about. They also produce sharper images with brighter colors than a rectilinear lens. Depending on your composition, a fisheye can be used to enhance the curvature of the earth
Explanation: I don't know why you are using it. sorry.
