In the first session of this 5 session workshop, I am going to explain the photography gear (camera) with special focus on different sensor types. Then we will discuss about the fundamental concepts of photography.
13. 03/02/15
Angle of view
gear: the lens
normal lens
46°
43mm
28mm
50mm
35mm
Image Source: http://www.powpowpictures.com/2011/05/nikon-50mm-f1-8-recommended-lens-for-any-slr-user/
14. 03/02/15
Angle of view
gear: the lens
normal lens
62°
43mm
28mm
35mm
24mm
Image Source: http://www.citysnaps.net/blog/2012/06/25/why-a-35mm-lens/
15. 03/02/15
Angle of view
gear: the lens
normal lens
46°
• Angle of view is close to human eye
• A standard perspective
• Suits for street photography
62°
50mm
35mm
20. 03/02/15
Angle of view
gear: the lens
Wide lens
84°
• A subject is shown with its environment
• Subjects in the front appear larger
(distortion)
• Good for confined spaces
• Hard to get shallow DOF
• Special care needed if used with people108°
24mm
16mm
21. 03/02/15
Angle of view
gear: the lens
Telephoto lens
100mm
100mm - Short Telephoto
200mm - Medium Telephoto
40mm - Super Telephoto
200mm
25. 03/02/15
Angle of view
gear: the lens
Telephoto lens
84°
• Has a very good reach
• Good for shallow DOF (blur backgrounds)
• Background area in the image is
minimized
• Compresses foreground and background
subjects108°
24mm
16mm
26. 03/02/15
what is
gear: the lens
zoom?
zoom values are normally specified as
nX e.g. 2X, 5X, 20X
Ratio between the widest and
the narrowest focal length
43. 03/02/15
what is
exposure part 1
depth of field?
Range of distance that appears in focus
Subject Distance
Depth of Field
Blur
Region
Blur
Region
44. 03/02/15
how to control
exposure part 1
depth of field?
Large aperture
Shallow DOF
Small aperture
Deep DOF
We already studied that aperture affects DOF !!!
45. 03/02/15
how to control
exposure part 1
depth of field?
Mainly two things control DOF
Aperture
Larger aperture means
shallow DOF
Focal Length
Larger focal length means
shallow DOF
46. 03/02/15
how to control
exposure part 1
depth of field?
Lets re-visit the focal length examples
Aperture: f/5.6
Shutter speed: 1/160
ISO: 800
Following settings stay constant in all the
photographs