Notes by Fayzan Gowani
Notes
– February 15th, 2008
Friday, February 15th,
2008
- Dynamic range:
- camera’s have limited
range of capturing shadow and light details.
- Computer software can fix
light level differences
- Definition: The range
of depths that are [sufficiently] in focus and not in focus
- [Sufficiently] because,
as photographers, when the object gets pretty focused, the object
is in focus. As
- It is hard to get depth
of field in bright light
- Circle of Confusion:
when you have light converging onto your image, a dot or a speck that
is not in focus becomes bigger and is seen in the photograph
- the bigger the aperture,
the lesser the depth of field
- for an amateur, more depth
of field is good
- Ratio of: focal-length/aperture
- Normal lens: a size
of lens
- Some believe it to be vaguely
“what you would normally see our of your own eyes”
- Technical definition:
a lens whose focal length is equal to the diagonal length of the lens
- Different “normal lenses”
for film cameras and digital cameras
- The bigger the lens, the
fewer the f-stops
- Aspect ratio:
ratio of length and width of picture
- Image sensors:
small image sensors retrieve cropped images, a smaller part of a photo
- A subsection of the photo,
zoomed in by the image lens
- Lenses on digital cameras
are more telephoto than on a film camera because of the image sensors
- Take several images of the
same subject with different focal lengths