pinhole camera
A pinhole camera is a simple camera without a lens but with a tiny aperture (the so-called pinhole)—effectively a light-proof box with a small hole in one side. Light from a scene passes through the aperture and projects an inverted image on the opposite side of the box, which is known as the camera obscura effect. The size of the images depends on the distance between the object and the pinhole.
Pinhole cameras can be handmade by the photographer for a particular purpose. In its simplest form, the photographic pinhole camera can consist of a light-tight box with a pinhole in one end, and a piece of film or photographic paper wedged or taped into the other end. A flap of cardboard with a tape hinge can be used as a shutter. The pinhole may be punched or drilled using a sewing needle or small diameter bit through a piece of tinfoil or thin aluminum or brass sheet. This piece is then taped to the inside of the light-tight box behind a hole cut through the box. A cylindrical oatmeal container may be made into a pinhole camera.
The interior of an effective pinhole camera is black to avoid any reflection of the entering light onto the photographic material or viewing screen.
- As pinhole photographs have nearly infinite depth of field, everything appears in focus.
- As there's no lens distortion, wide-angle images remain absolutely rectilinear.
- Exposure times are usually long, resulting in motion blur around moving objects and the absence of objects that moved too fast.
Pinhole cameras can be handmade by the photographer for a particular purpose. In its simplest form, the photographic pinhole camera can consist of a light-tight box with a pinhole in one end, and a piece of film or photographic paper wedged or taped into the other end. A flap of cardboard with a tape hinge can be used as a shutter. The pinhole may be punched or drilled using a sewing needle or small diameter bit through a piece of tinfoil or thin aluminum or brass sheet. This piece is then taped to the inside of the light-tight box behind a hole cut through the box. A cylindrical oatmeal container may be made into a pinhole camera.
The interior of an effective pinhole camera is black to avoid any reflection of the entering light onto the photographic material or viewing screen.
swbat: create a pinhole camera using paper and pins. photographing through the pinhole, students will achieve the pinhole effect and enhance the effect by adding filters in photoshop.
See demonstration in class for how to cover your lens, use a pinhole, and what camera settings should be used.
Check google classroom under the classwork assignment page or click here for more details.
Check google classroom under the classwork assignment page or click here for more details.