PowerPoint for a photography workshop for intermediate photographers, with a focus on photography in India

1. Photography
Workshop
John
Pheasant
IAAP
Tuesday
23
February
5
–
6
pm

2. Photography
workshop:
Intermediate
¡ GeBng
to
know
you
¡ Taking
control
of
your
photography
¡ Aperture
and
depth
of
field
¡ ShuHer
speed
and
sense
of
moIon
¡ PracIcal
2

3. GeBng
to
know
you
¡ How
long
have
you
been
taking
photos?
¡ What
do
you
like
to
photograph?
¡ What
camera
do
you
have?
¡ What
would
you
like
to
learn
in
this
workshop?
3

4. Taking
control
¡ Point
and
shoot
cameras
¡ You
point
but
the
camera
does
the
interesIng
part
¡ SLR
and
DSLR
cameras
let
you
take
control
¡ Let’s
look
at
two
essenIal
ways
of
taking
control
4

5. Photography
basics:
revision
¡ What
controls
your
exposure?
5

6. Photography
basics:
revision
¡ What
controls
your
exposure?
¡ Aperture
¡ ShuHer
speed
¡ SensiIvity
of
the
sensor
or
film
6

7. Photography
basics:
revision
¡ What
controls
your
exposure?
¡ Aperture:
the
size
of
the
hole
through
which
light
enters
the
camera
¡ ShuHer
speed:
the
length
of
Ime
during
which
light
enters
the
camera
¡ SensiIvity
of
the
sensor
or
film:
the
amount
of
light
needed
to
record
the
image
7

8. Photography
basics:
revision
¡ Aperture:
e.g.
f/2.8
¡ ShuHer
speed:
e.g.
1/500
sec
¡ SensiIvity
of
the
sensor
or
film:
e.g.
ISO
100
8

9. Photography
basics:
revision
¡ There
is
a
mathemaIcal
relaIonship
between
¡ Aperture
¡ ShuHer
speed
¡ SensiIvity
of
the
sensor
or
film
(ISO)
¡ At
the
same
ISO,
halving
the
aperture
requires
the
Ime
the
shuHer
is
open
to
be
doubled
to
make
the
same
exposure
9

10. Aperture
and
shuHer
speed
¡ Apertures
¡ Smallest
to
largest
(called
‘stops’)
¡ f/32,
f/22,
f/16,
f/11,
f/8,
f/5.6,
f/4,
f/2.8
¡ ShuHer
speeds
¡ Fastest
to
slowest
¡ 1/1000
sec,
1/500
sec,
1/250
sec,
1/125
sec,
1/60
sec,
1/30
sec,
1/15
sec,
1/8
sec
10

11. Aperture
and
shuHer
speed
¡ The
same
exposure
can
be
made
with
different
combinaIons
of
aperture,
shuHer
speed
and
ISO,
e.g.
¡ Aperture:
f/2.8
¡ ShuHer
speed:
1/500
sec
¡ SensiIvity
of
the
sensor
or
film:
ISO
100
¡ Will
give
the
same
exposure
as
¡ Aperture:
f/4
(aperture
halved)
¡ ShuHer
speed:
1/250
sec
(Ime
shuHer
is
open
doubled)
¡ SensiIvity
of
the
sensor
or
film:
ISO
100
11

12. Aperture
and
depth
of
field
¡ Aperture
¡ also
controls
depth
of
field
(how
much
of
the
photo
is
in
focus)
¡ The
smaller
the
hole,
the
greater
the
dof
¡ The
larger
the
hole,
the
shallower
the
dof
12

13.
Aperture
¡ The
larger
the
hole,
the
smaller
the
aperture
number
e.g.
f/2.8,
f/5.6
(
=
faster
shuHer
speeds)
¡ The
smaller
the
hole,
bigger
the
aperture
number
e.g.
f/11,
f/16
(
=
slower
shuHer
speeds)
13

14. Depth
of
field
¡ Everything
in
focus?
¡ Specific
subject
in
focus?
¡ How
much
depth
of
field?
¡ Depth
of
field
and
low
light
photography
14

15.
Depth
of
field:
shallow
15

16.
Depth
of
field:
less
shallow
16

17. Depth
of
field:
portraits
17

18. Depth
of
field:
portraits
18

19.
Depth
of
field:
low
light
¡ Greater
depth
of
field
=
smaller
apertures
(e.g.
f/11,
f/16)
¡ Smaller
apertures
require
the
shuHer
to
be
open
for
longer
¡ Slower
shuHer
speed
increases
risk
of
hand
shake
(blurring)
¡ SoluIon?
¡ Increase
ISO
¡ Tip:
use
auto
ISO
and
set
minimum
shuHer
speed
¡ Allows
photographer
to
vary
aperture
(dof)
without
blur
19

20.
Depth
of
field:
low
light
¡ But!
¡ Higher
ISO
(e.g.
800,
1600)
=
‘noise’
¡ ‘Noise’
is
a
grainy
effect
in
the
image
¡ Tip:
use
lowest
ISO
as
possible
(e.g
400
rather
than
800)
¡ With
higher
ISO:
reduce
noise
in
ediIng
20

21. ShuHer
speed
¡ The
faster
the
shuHer
speed,
the
sharper
the
image
(less
hand
shake
or
blur)
¡ But,
if
you
slow
the
shuHer
speed,
you
can
create
a
sense
of
moIon
¡ For
long
exposures
(1/20
sec
and
slower),
use
a
tripod
¡ Panning
21

22. ShuHer
speed:
moIon
22

23. ShuHer
speed:
moIon
¡ This
photo
was
taken
at
1/60
sec
¡ At
this
shuHer
speed,
the
red
spokes
of
the
wheel
are
slightly
blurred
¡ This
conveys
the
moIon
¡ The
focus
is
on
the
inner
mechanism
pulping
the
sugar
cane
¡ Aperture
f/5
23

24. ShuHer
speed:
water
¡ Long
exposures
(very
slow
shuHer
speeds)
will
smooth
water
and
give
a
dreamy
effect
Copyright
500px
24

25. ShuHer
speed:
waterfalls
¡ Long
exposures
(slow
shuHer
speeds)
create
a
sense
of
flowing
water
in
rivers
and
waterfalls
Copyright
deviantart
25

26. Select
aperture
or
shuHer
speed
¡ Never
use
auto
¡ Select
aperture
seBng:
you
control
aperture,
the
camera
sets
your
shuHer
speed
¡ I
recommend
this
seBng
for
most
photography
¡ For
moIon,
select
shuHer
speed:
you
control
shuHer
speed,
the
camera
sets
you
aperture
26

27. PracIcal
¡ Let’s
get
you
taking
some
photos!
27