This document defines photography and photo editing terms, including: aperture, which refers to the size of the lens opening measured in f-stops; ISO, which is the sensitivity of an image sensor to light; and exposure, which is how the camera adjusts shutter speed and aperture to ensure the right amount of light reaches the sensor. It also provides definitions for terms like focal length, which is the distance between the center of a lens and its focus point, and resolution, which refers to the number of pixels in an image. Overall, the document serves as a reference guide for common photography and photo editing concepts, techniques, and settings.

3. Aperture
The size of the lens opening which is measured
in f-stops.

4. Backlight
Lighting in a photograph that comes from behind
the subject.

5. Blending Mode
How two layers are blending into each other in
Photohsop

6. Bracketing
To shoot frames at exposure levels above and
below the correct exposure

7. Burst Mode
Burst mode is a camera feature that allows ou to
take a set amount of pictures ia a short time.

8. CMYK
The color model based on cyan, magenta, yellow
and “Key” (or black”)

9. Color balance
Balancing the color in a photograph based on the
type of light in a scene.

10. Color Temperature
A term used to describe the overall color of an
image, whether “warm” or “cold”

11. Composition
The placement or arrangement of visual
elements in a work of art or a photo.

12. Compression
Reducing the file size and quality of an image to
an acceptable level.

13. Contrast
The relative difference between the light and
dark areas of an image.

14. Curves
A function found in photo editing software that
adjust the tone of an image.

15. Depth of Field
The distance in front of and behind the subject
that is in focus.

16. Defuse
A term used to soften or spread light with
umbrellas, soft-boxes or other “modifyers.

17. Exposure
Exposure is how the camera adjust the shutter
speed and aperture to ensure the right amount of
light reaches the sensor.

18. F-stop
The measurement of the aperture setting in a
camera lens.

19. Feather
Softening the edge of a selection by making it
regularly fade out until it becomes transparent.

20. File compression
The compression of data in a file, usually to
reduce file size.

21. Filter
A particular effect that can be applied to an
image or part of an image.

22. Fisheye
A very wide angle lens with a field of vision
covering up to 180 degrees.

23. Focal lenght
Distance between the center of a lens or mirror
and its focus.

24. Foregraound
The part of the scene in front of the main subject.

25. Gradient
Rate of change in density with exposure, pixel
intensity, and image processing.

26. High Dynamic Range
HDR is an increase in the range between the
lightest and darkest areas of an image.

27. Histogram
A graphic representation showing how possible
levels of brightness are distributed in an image.

28. Hot light
Traditional tungsten lights that are always on at
full power.

29. Hue
The name of any color as found in its pure state
in the spectrum.

30. ISO
The sensitivity of the image sensor to light

31. Key light
The main light that illuminates the subject.

32. Layer
Images or effects overlaid on top of one another.

33. LCD Screen
A flat screen available on digital cameras which
displays an image using liquid crystal molecules.

34. Levels
A tool that adjust the brightness levels of a photo
using three main components: a black piint, white
point and midtone.

35. Light Meter
A device used to measure the amount of light
and determine the proper exposure for a
photograph.

36. Macro
A close-up photograph, usually of a small object.

37. Main light
The primary light source illuminating the subject
(also known as Key Light).

38. Mask
A simple way to hide parts of a layer.

39. Megapixel
A unit of image sensing capacity in a digital
camera.

40. Noise
Colored dots or spercks in an image caused by
high ISO or low light

41. Optical Zoom
A lens that magnifies the subject before
recording the image on a digital sensor.

42. Overexposure
An image that appears too light because of too
much light reaching the sensor.

43. Panning
Horizontal movement or rotation of a still camera
or video camera.

44. Perspective
The relationship of objects in a photograph.

45. Photoshop
An image manipulation program developed by
Adobe Systems, Inc.

46. Pixel
The smallest unit of a rester image.

47. Pixelization
Visible pixels in a digital image.

48. Portable Network Graphics
A compressed image file format similar to jpeg,
maintaining transparency.

49. Post-Processing
Editing an image with software after the initial
photography.

50. Prefocus
Setting the focus of the lens to a point in the
scene where you expect the action to take place.

51. Prime Lens
A lens whose focal length is fixed.

52. Photoshop Document
A native file format created in Photoshop.

53. Raster Graphic
A pixel based graphic with a fixed resolution.

54. RAW
An uncompressed file captured from a digital
camera.

55. Resolution
The number of pixels in an image.

56. CMYK

57. RGB
The color range for computers made of red,
green, and the blue light.

58. Rule of Thirds
Dividing that frame into 9 imaginary sections in
order to create reference points to anchor the
subject.

59. Saturation
The strength of a color in an image.

60. Scanner
A device that captures images from prints for a
computer editing and display.

61. SD Card
A small flash memory card designed to provide
high-capacity memory in a small size.

62. Selection
An area of the image that is selected to
manipulate in software.

63. Shape
Areas which define objects in a space.

64. Shutter
A mechanical device for opening and closing the
aperture of a lens during exposure.

65. Shutter Priority
A camera setting where you set the shutter
speed and the camera determines the aperture.

66. Shutter Speed
The effective length of time a camera’s shutter is
open during an exposure.

67. Strobe
A light source that discharges a controllable
amount of light.

68. Telephoto Lens
A lens that has a narrow angle of view and long
focal length.

69. Texture
The surface detail of objects within a photograph.

70. Thumbnail
A small image representing a larger graphic,
document, or image.

71. Tagged Image File Format
An image file format with less compression than
png or jepg

72. Tilt-Shift
Using lenses or layer masks to manipulate the
focal area.

73. Tone
The degree of lightness or darkness in an image
or print.

74. Through the Lens
TTL metering is a cameras capability of
measuring light levels in a scene through their
lenses.

75. Underexposure
Inadequate exposure to light causing the image
to be too dark.

76. Value
The degree of lightness or darkness in a
photograph.

77. Vector Graphic
An image created as lines rather than pizels that
can be scaled without loss of resolution.

78. View Finder
What a photographer looks through to compose,
and in many cases to focus a photograph.

79. Vignette
An image with an edge that gradually fades to
black or white.

80. White Balance
The ability to adjust colors based on white as a
reference color.

81. Zoom Lens
A lens with a variable focal length

82. Wide Angle Lens
A lens with a short focal length and a large angle
of view

83. Wide Angle Lens
A lens with a short focal length and wide angle of
view

84. Zoom
To enlarge part of an image or scene