Shaw Academy Photography Quiz

Pixels are indeed grouped in vertical and horizontal lines to form an image. Each pixel represents a single point in an image, and when these pixels are arranged in a grid-like pattern, they form the complete image. The vertical and horizontal lines created by these pixels allow for the representation of shapes, colors, and details in the image. Therefore, the statement is true.

The image produced by the camera has a size of 5616 pixels long x 3744 pixels high. Since the resolution of the camera is given as 21 Mega Pixels, it means that the total number of pixels in the image is 21 million (21 million pixels = 21 Mega Pixels). Therefore, the given image size matches the resolution of 21 Mega Pixels.

The total angle of view of human vision is 130 degrees. This means that humans can see approximately 130 degrees from their central point of focus. This angle allows for a wide field of vision, enabling us to perceive objects and events in our surroundings.

The mirror is positioned directly behind the shutter in a DSLR. The mirror reflects the light coming through the lens upwards into the viewfinder, allowing the photographer to see the image before capturing it. When the shutter is released, the mirror flips up, allowing the light to reach the sensor and capture the image. This mechanism is what distinguishes a DSLR from other types of cameras, as it provides a real-time optical viewfinder.

ISO is a measure of a camera sensor's sensitivity to light. In bright sunlight, you need less sensitivity to avoid overexposure. ISO 100 is a low ISO setting, ideal for bright conditions. Higher ISO settings like 800, 1600, or 3200 are better suited for low-light situations where you need to increase the sensor's sensitivity to capture a well-exposed image.