it is coo good

1. COMPUTER ASSISNMENT
PPT ABOUT PHOTO GRAPHY
DONE BY:
J. HARSHAN
IX-B2

2. Digital photography uses an array of electronic photodetectors to capture the image focused
by the lens, as opposed to an exposure on photographic film. The captured image is
thendigitized and stored as a computer file ready for digital processing, viewing, digital
publishing or printing.
Until the adventof such technology, photographs were made byexposing light
sensitivephotographic film, and used chemical photographic processing to develop and stabilize
the image. By contrast, digital photographs canbe displayed, printed, stored, manipulated,
transmitted, and archived using digital and computer techniques, without chemical processing.
Digital photography is oneof several forms of digital imaging. Digital images are also createdby
non-photographic equipment such as computer tomography scanners and radio telescopes.
Digital images can also bemade by scanning otherphotographic images
Digital photography

3. Choosing theBest Camera
•Nota once in a lifetimepurchaseanymore.
•Selectone which can do the job you want
Today and asperyour futurerequirement
•Somekindsof camerasdo.
somekinds of thingsbetter ormoreeasily
e.g., Sportsphotography vs. Close-upportraits.
•Priceisn’tthe bestindicator.

4. TYPES OF CAMERAS
• WEB CAMERAS AND MOBILE CAMERAS

5. • POINT AND SHOOTCAMERAS

6. • ADVANCEDCONSUMERMODEL

7. • PROSUMERDslrmodels

8. • Professional cameras

11. RESOLUTION AND PRINT
SIZES
Resolution Avg. quality Best quality Resolution
0.5 megapixels 3x5
in.
N/A 800 x 600
2 megapixels 8x10
in.
3x5 in. 1600 x 1200
4 megapixels 11x14
in.
5x7 in. 2300 x 1700
6 megapixels 16x20
in.
8x0 in. 3000 x 2000
10+megapixels 25x40
in.
13x17 in. 3888+ x 2592+

12. PHOTOGRAPHY TECHNICALITY
Anti-Blur
Anti-Shake
Image Stabilization
Vibration Reduction
•A technology that stabilizes the lens to
effectively reduce blur due to camera shake

13. HISTOGRAM

14. METERING
How thecamera measuresthe amount of light
availableto exposea picture
•Centre-Weighted:Readingsaretakenat
variouspart of the picture, witha special
emphasisfor the centre.
•Spot: Readingsare takenat a specificpoint.
•Each cameramanufacturerhas itsown
variations(EvaluativeMetering)

15. WHITE BALANCE
Theabilitytoadjustcoloursbasedonwhiteas
a reference colourtogiveas truea whiteas
possible
•Allothercoloursare correctedaccordingly
•AutoWB(AWB): thecamera determinesand
selectsthecorrectcolourtemperaturefor
white.

16. WHITE BALANCE
Somepreset white balance settings are
daylight, cloudy, tungsten, or fluorescent.

18. Aperture, Depthof
Field,Shutter
Speed, ISO, Noise
APERTURE
a hole or an opening
through which
light travels
It causes variations in
the Depth of Field
within the image

19. f16
f2.8

24. Shutter Speed
•Amount of time the
picture is exposed
•Short/Fast shutter speed
•Long/Slow shutter speed

25. 1/8th

26. 1/30th

27. 1/60th

28. 1/500th

29. RESULTS OF VARYING SHUTTER SPEED

33. Which shutter speed is the best

35. ISO 100

36. ISO 1600

37. Shutter Priority
Shutter Priority:
Allows you to decidethe shutter speed(e.g.fast at 1/500 sec.for stop action
photography, or slow at 2 sec.for night photography), and the camera decides the
best aperture.

38. Aperture Priority
Aperture Priority:
Allows you to choose the aperture (e.g. large at F1.8 for portrait, of small
at F16 for landscapes).

39. Manual
You have complete creative control in selecting both
the shutter and aperture.

40. Auto
Alldigital cameras usuallyhave an Auto mode: the
camera decides for you the best shutter
speed/aperture settings.

41. Landscape photography
Primary function isto allow a large depth of field.
Landscape mode tells the camera to default to a
large Depth of Field (Small Aperture)–f16.

42. Portrait Photography
This mode is notwell suited for full-length
portraits orgroups of people
Portrait mode tells the camera to default to a:
•Small Depth of Field (Large Aperture)– f1.8

43. Sports/Action Photography
tells the camera to default its settings toward
capturing images faster
This is done by:
•Increasing Shutter Speed
•Increasing ISO

44. NightPhotography
This preset slows down the shutter speedto
allow a lot of light into the camera.
•Both the foreground and backgroundof the image are properly
exposed.
•very useful in taking low-light
images where you donot want
the background to beblack

49. EXIF (exchangeable image file)
• EXIF (exchangeable image file) data is a record of what camera
settings were used to take a photograph.
EXIF data stores information like camera model, exposure, aperture,
ISO, what camera mode was used .....
To interpret this EXIF data, you will need an EXIF viewer. There are
many ways to go about this. Your image processing program should
provide that functionality within the program.
For beginners, reading an images EXIF data can be a very useful
learning tool....

50. Nightphotography
Takeanumberof shotsatdifferentshutterspeed/aperturecombinations.
EnsureyourLCDbrightness isset toNormal,notBright, foratruer
representationofyourrecordedimage.
A goodaperturetostartwithis F4.0 or F5.6 (forgreatestdepthoffield),
andadjustshutterspeedupor downuntil you'resatisfiedwiththeshot.
Alwaysbringandusea tripod.It's quitecommon tohaveexposuresofan
entiresecondor moreduringnight-time photography.
Bring alonga flashlight.A pocketflashlightis essential whenyou'redoing
photographyatnight.

51. Minimalisticphotography
Minimalisticphotosiscreating‘empty’spacesin thephotograph....
The eye ofthe personlookingatthe imagecan’thelp butbedrawntothe
element oftheimage you’vetaken....the subject!
“makeyoursubjectthe strongestpointof yourphotoeven thoughit might
takeuponlyasmall partoftheoverall image”....
WhenI’m attemptingtotakeashowwith aminimalist feelto itI keep
thosewordsin mind.
picksubjectswisely
experimentwith color
usedepthoffield
cropoutdistractions
Zoom In orout...

54. 19th century studio camera
standing on tripod and
using plates
Box camera, one of
the first mass-
produced pocket
cameras using film,
c. 1900
Compact Kodak
folding camera
from 1922
Evolution of the camera

55. Leica-II, one of
the first 135
filmcameras,
1932
ContaxS of
1949 – the
first pentaprismSL
R
Polaroid
Colorpack 80
instantcamera, c
1975

56. Digital
camera,Canon
Ixus class, c.2000.
Nikon D1, the
first digital SLR used in
journalism and sports
photography, c.2000
Smartphonewith built-
in cameraspreads
private images globally,
c.2010

57. THANK YOU
THANK YOU FOR
U R
COOPERATION