Aperture is the diaphragmatic opening in the lens that increases or decrease in size to control the amount of light that passes through.
Depth of field is the distance between the nearest and farthest objects in a scene that appear sharp. As you can see the photo on the left has a blurred background and the photo on the right has a sharp background with both flowers still looking the same. This is because smaller apertures result in greater depth of field and bigger apertures result in shallow depth of field (background more out of focus).
Shutter speed is the curtain that opens for a specified amount of time to control the amount of light that passes through. These are measured in fractions of seconds. As you can see the first image is at a fast shutter speed, which completely freezes the picture, and the last image is at a slow shutter speed which allows you to see the image moving.
Equal exposure is two combinations of aperture and shutter speed that allow an
equal amount of light into the camera. For instance, f8@1/30 equals f5.6@1/60...different
numbers, same amount of light.
equal amount of light into the camera. For instance, f8@1/30 equals f5.6@1/60...different
numbers, same amount of light.
Resolution is the number of pixels that make up an image. An image that is 2048 pixels in width and
1536 pixels in height has a total of 2048×1536 = 3,145,728 pixels or 3.1 megapixels. One could
refer to it as 2048 by 1536 or a 3.1-megapixel image.
1536 pixels in height has a total of 2048×1536 = 3,145,728 pixels or 3.1 megapixels. One could
refer to it as 2048 by 1536 or a 3.1-megapixel image.