What is shutter speed? It is essentially the 1/8000, indicator of the 1/4000, duration / timing 1/1000, at which the 1/500, shutter curtain 1/250, opens up and 1/125, closes during an 1/60, exposure process 1/30, 1/15, 1/8, 1/4, 1/2, 1 etc.
Shutter speed dial The shutter speed dial provide the selection of shutter speeds, and indicates the timing of the shutter open and closes. A fast shutter speed such as 1/500 sec will close faster than, say 1/2 sec exposure time. In this case, the shutter curtain will close very fast and thus resulting in less light entering the film.
What does shutter speed do ? Different shutter speeds yield different kind of visual effect on a final photograph. A fast shutter speed can freeze action while slow speed can blur your image
What is Aperture? The aperture is like a pupil in your eye. The pupil opening is bigger in a room with less light to allow you to see and Vice Versa. In Photography, Aperture is referred to lens diaphragm opening inside a photographic lens. The size of this diaphragm opening in a camera lens REGULATES amount of light that passes through onto film inside the camera. The size of an aperture in a lens can either be a fixed or adjustable type (like an SLR camera).
How is aperture calibrated ? Aperture size is usually calibrated in f-numbers. These are ratios. i.e. f 22 (f/22), f16 (f/16), f/11, f/ 8.0, f/5.6, f/4.0, f 3.5 ,f/2.8, f/2.0, f/1.8 etc.
What it means is f/16 will let in 1X the amount of light than a diaphragm opening of f/22 and so forth; f/4.0 will let in 1X lesser than that of f/2.8 etc. Aperture + Shutter Speed = Exposure Aperture, along with duration/timing of shutter curtain opening, BOTH contribute to a the formation of an exposure. Aperture also affects "depth of field"
Exposure Balancing Shutter and Aperture: Exposure is about different combinations of shutter and f-stop settings. These combinations can drastically affect the finished picture.
Relation between A and SS Shutter SpeedAperture Slow (1/30 sec) Fast (1/1000 sec)Small Overexposed — a slow Correct — a fast shutterf-stop shutter speed and small f- speed lets in less light, but a(f4.5) stop will both let in more light small f-stop lets in moreLarge Correct — a slow shutter Underexposed — a fastf-stop speed lets in more light, but a shutter speed and large f-(f22) large f-stop lets in less stop both let in less light