The document discusses different types of cameras including instant cameras, digital cameras, video cameras, camcorders, professional video cameras, CCTV cameras, remote cameras, IP cameras, movie cameras, pinhole cameras, rangefinder cameras, camera phones, SLR cameras, TLR cameras, toy cameras, and virtual cameras. It provides descriptions of each type of camera, highlighting their key features and uses.

2. instant camera
The instant camera is a type of camera that
generates a developed film image. The
most popular types to use self-developing
film were formerly made by Polaroid
Corporation.

3. Digital camera
-A digital camera (or digicam) is a
camera that takes video or still
photographs by recording images on an
electronic image sensor

4. Digital and film cameras share an optical
system, typically using a lens with a variable
diaphragm to focus light onto an image pickup
device. The diaphragm and shutter admit the correct
amount of light to the imager, just as with film but
the image pickup device is electronic rather than
chemical. However, unlike film cameras, digital
cameras can display images on a screen immediately
after being recorded, and store and delete images
from memory. Many digital cameras can also record
moving video with sound.

5. Video camera
-A video camera is a camera used for electronic
motion picture acquisition, initially developed by
the television industry but now common in other
applications as well

6. -camcorder
A camcorder (formally a video camera recorder)
is an electronic device that combines a video
camera and a video recorder into one unit;
typically for out-of-studio consumer video
recording.[

7. Professional video camera
A professional video camera (often called a television
camera even though the use has spread beyond
television) is a high-end device for creating electronic
moving images (as opposed to a movie camera, that
records the images on film).

8. Closed-circuit television camera
-Closed-circuit television (CCTV) cameras
can produce images or recordings for
surveillance purposes, and can be either
video cameras, or digital stills cameras.

9. A remote camera is a camera
placed by a photographer in
areas where the photographer
generally cannot be. This
includes areas with limited
access, tight spaces where a
person is not allowed, or just
another angle so that the
photographer can
simultaneously take pictures of
the same moment from
different locations.

10. An Internet protocol
camera, or IP camera, is a type
of digital video camera
commonly employed for
surveillance, and which unlike
analog closed circuit television
(CCTV) cameras can send and
receive data via a computer
network and the Internet.
Although most cameras that
do this are webcams, the term
"IP camera" or "netcam" is
usually applied only to those
used for surveillance.

11. The movie camera is a type of photographic camera
which takes a rapid sequence of photographs on strips
of film. The video camera has largely replaced it for
private use, but for professional purposes, movie
cameras are used and produced today, especially for
the production of full-feature movies.

12. In contrast to a still camera, which captures
a single snapshot at a time, the movie
camera takes a series of images; "frame".
This is accomplished through an
intermittent mechanism. The frames are
later played back in a movie projector at a
specific speed, called the frame rate
(number of frames per second). While
viewing, a person's eyes and brain merge
the separate pictures together to create the
illusion of motion.

13. A pinhole camera is a simple
camera without a lens and
with a single small aperture –
effectively a light-proof box
with a small hole in one side.
Light from a scene passes
through this single point and
projects an inverted image on
the opposite side of the box.
The human eye in bright light
acts similarly, as do cameras
using small apertures.

14. Rangefinder camera
A rangefinder camera is a camera fitted with a
rangefinder: a range-finding focusing mechanism
allowing the photographer to measure the subject
distance and take photographs that are in sharp
focus.

15. Most varieties of rangefinder show two
images of the same subject, one of which
moves when a calibrated wheel is turned;
when the two images coincide and fuse into
one, the distance can be read off the wheel.
Older, non-coupled rangefinder cameras
display the focusing distance and require
the photographer to transfer the value to
the lens focus ring; cameras without built-in
rangefinders could have an external
rangefinder fitted into the accessory shoe.

16. Camera phone
A camera phone is a mobile phone which is able
to capture still photographs (and usually video).
Since early in the 21st century the majority of
mobile phones in use are camera phones

17. A single-lens reflex (SLR) camera is a camera that
typically uses a mirror and prism system (hence
"reflex", from the mirror's reflection) that permits the
photographer to view through the lens and see
exactly what will be captured, contrary to viewfinder
cameras where the image could be significantly
different from what will be captured.

18. Most camera phones are simpler than separate
digital cameras. Their usual fixed focus lenses
and smaller sensors limit their performance in
poor lighting. Lacking a physical shutter, most
have a long shutter lag. Flash, where
present, is usually weak. Optical zoom[2] and
tripod screws are rare. Some also lack a USB
connection, removable memory card, or other
way of transferring their pictures more quickly
than by the phone's inherent communication
feature.

19. A twin-lens reflex camera (TLR) is a type of camera
with two objective lenses of the same focal length. One
of the lenses is the photographic objective or "taking
lens" (the lens that takes the picture), while the other is
used for the viewfinder system, which is usually viewed
from above at waist level. In addition to the
objective, the viewfinder consists of a 45-degree mirror
(the reason for the word reflex in the name), a matte
focusing screen at the top of the camera, and a pop-up
hood surrounding it. The two objectives are
connected, so that the focus shown on the focusing
screen will be exactly the same as on the film.

21. a toy camera refers to a simple, inexpensive film
camera. Despite the name, they are in fact always fully
functional and capable of taking photographs, albeit
with optical aberrations due to the limitations of the
simple lenses.

22. A virtual camera system aims at
controlling a camera or a set of cameras
to display a view of a 3D virtual world.
Camera systems are used in videogames
where their purpose is to show the
action at the best possible angle; more
generally, they are used in 3D virtual
worlds when a third person view is
required.

23. Virtual camera