Shallow Strength Of Photography In Middle School

Photography has been an interest of mine for a few years now, so I have decided to focus my mathematical investigation on the interchangeable elements of photography that helps a photographer express their creativity. I gained my interest in photography in middle school when I began to analyze photos and dissect what it is that made the viewer feel a certain way. I took photography in my first two years of high school where I then learned the basics of photography and its language that would then help me decide what to investigate in photography for this assessment and will help me understand the research necessary for this topic. I have always found interesting that in modern day, we carry surprisingly powerful cameras everywhere with us in

Shallow depth of field usually has a softer focus on the background and foreground. In a longer depth of field, most, if not all, visual planes are in a sharper focus. Furthermore, the four factors that determines if the depth of field is long or shallow are circle of confusion, aperture, focal length, and the distance between the lens and the subject (focal distance. For example, an image with a shallow depth of field was taken with a wider aperture, longer focal length, and was closer to the subject, while a longer depth of field would have a narrow aperture, shorter focal length, and a longer distance between the camera’s lens and the

According to B&H, the circle of confusion is “the size of the largest blur spot that still appears as a single point (in focus) in an image”. In other words, if the photographer were to change the position of its camera, hence changing the distance between the subject and lens, then at what point would a blur spot reach its largest size while still being seen as a single, circular dot. For instance, in figure 2, if the photographer wanted to calculate the circle of confusion, they would use information of the top or bottom diagram since they formed a single spot that is larger than the one created by the middle diagram, which is completely in focus since it is perfectly aligned with the focal plane and image plane. (Vorenkamp, Depth of Field) Figure 2- Circle of Confusion

Like depth of field, circle of confusion has factors that can affect it, which are viewing distance, enlargement, and visual acuity. The formula for circle of confusion is;

Circle of confusion= (diagonal of the sensor in mm)/(visual acuity in lp/mm at 25cm x diagonal of the print in