What are the common portrait aspect ratios used in photography and how do they impact the composition of a portrait?

Common portrait aspect ratiOS used in Photography include 4:3, 3:2, and 16:9. These ratiOS affect how the subject is framed within the image, influencing the composition and overall feel of the portrait. For example, a 4:3 ratio may provide a more balanced and traditional look, while a 16:9 ratio can create a more cinematic or dramatic effect. The choice of aspect ratio can impact the placement of the subject within the frame and the overall visual appeal of the portrait.