Shutter speed refers to the duration that the camera shutter is open, allowing light to enter the camera. Faster shutter speeds like 1/1000 sec can freeze motion, while slower speeds like 1/15 sec can blur motion. The shutter speed dial on a camera selects different shutter speeds. Aperture refers to the size of the opening in the camera lens that regulates how much light passes through. Smaller f-stops like f/4 let in more light than larger f-stops like f/22. Balancing the shutter speed and aperture settings together determines the overall exposure of the photo.
4. 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.
5. 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.
6. 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
13. 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).
14. 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.
15. 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"
16. Exposure
Balancing Shutter and Aperture:
Exposure is about different combinations of
shutter and f-stop settings. These
combinations can drastically affect the
finished picture.
20. Relation between A and SS
Shutter Speed
Apert
ure
Slow (1/30 sec) Fast (1/1000 sec)
Small Overexposed a slow Correct a fast shutter
f-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 more
Large Correct a slow shutter Underexposed a fast
f-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