How to make Pinhole camera

‐
=
How
to
make
Pinhole
camera
?
=‐
What
is
a
Pinhole
camera
?
A
pinhole
camera,
also
known
as
camera
obscura,
or
"dark
chamber",
is
a
simple
optical
imaging
device
in
the
shape
of
a
closed
box
or
chamber.
In
one
of
its
sides
is
a
small
hole
which,
via
the
rectilinear
propagation
of
light,
creates
an
image
of
the
outside
space
on
the
opposite
side
of
the
box.
Things
you'll
need:
•
No.
8
Sewing
Needles
•
Flat
Black
Spray
Paints
•
Aluminum
Foil
•
Scrap
Cardboard
•
Cylindrical
Oatmeal
Boxes
•
Photographic
Print
Papers
•
Black
Electrical
Tapes
•
Sandpaper,
hammer
and
a
nail
Constructing
the
Camera
:
1
#
Build
your
camera
using
any
sturdy
container.
For
your
first
one,
we
recommend
using
a
cylindrical
oatmeal
box,
which
will
have
the
added
advantage
of
creating
pleasantly
distorted
images
that
can
be
quite
compelling.
2
#
Start
by
spray
painting
the
interior
of
the
box
and
plastic
cap
with
a
coat
of
flat
black
paint.
3
#
Wait
for
the
paint
to
dry.
4
#
Tape
all
the
seams
with
black
electrical
tape.
5
#
Fashion
a
tape
baffle
around
the
lid
to
prevent
light
from
leaking
in:
Make
an
overhanging
lip
of
tape
around
the
edge
of
the
lid.
You'll
need
to
be
able
to
remove
the
lid
to
change
the
film,
but
you
need
it
to
be
light‐
tight
when
it's
closed.
6
#
Take
a
2cm‐square
piece
of
heavy‐duty
aluminum
foil
and
place
it
between
two
pieces
of
cardboard.
7
#
Make
the
pinhole
by
rotating
a
No.
8
needle
back
and
forth
through
all
three
layers
to
make
the
pinhole
aperture.
Don't
puncture
the
foil;
drill.
8
#
Discard
the
cardboard.
9
#
Sand
the
two
sides
of
the
aperture
lightly
with
300‐grit
sandpaper.
10
#
Drill
or
cut
a
1
milimeter
round
hole
in
the
center
of
the
side
of
the
cylinder
box
and
sand
off
any
shaggy
cardboard
edges.
11
#
Attach
the
aperture
by
lining
up
and
centering
the
aperture
hole
to
the
hole
on
the
outside
of
the
box.
12
#
Use
tape
all
around
the
edges
of
the
aperture
to
attach
it
to
the
box.
13
#
Cut
a
small
piece
of
electrical
tape
and
place
it
over
your
aperture
hole.
This
is
the
camera's
shutter.
How
to
develop?
http://chromogenic.net/develop