1. Shutter Speed
By: Amit Chawla

2. Blurred v/s Frozen Shots

3. Blurred v/s Frozen Shots

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

7. Examples of Slow Shutter Speed

8. Examples of Slow Shutter Speed

9. Examples of Fast Shutter Speed

10. Examples of Fast Shutter Speed

11. Creative effect of Combination

12. Aperture
By: Amit Chawla

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.

17. A COMPARISON
ALL PICS HAVE SAME AMT OF LIGHT

18. Amount of light

19. Amount of light

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