2. CCD
• The image sensor or Charged Coupling Device
(CCD) is the part of the camera or camcorder
that receives the image data from the lens.
• The CCD is a grid of light –sensitive cells called
photo site, representing pixels, that collect
values for RGB (or YUV).
• The size and patterns of the cells on the
surface of the sensor determine the true
resolution of the camera.
4. Complementary Metal-Oxide
Semiconductor (CMOS)
• It starts with a one-third sensor, which means
the surface area of the sensor is small- based
on one third the size of the imaging area on a
standard 35mm film camera.
• The progressive scans of this sensor are
interpolated to produce the correct number of
pixels, but the data in those pixels is primarily
from the luminance, or green channel.
6. Complementary Metal-Oxide
Semiconductor (CMOS)
• This gives the greyscale part of the image a
lot of clarity and sharpness, but the colour
saturation from the red and blue channels
suffers greatly.
• The interpolation compensates by averaging
the data and creates a simulated HD image
that looks pretty good with live footage but
wreaks havoc on a green screen shot.
17. Codex-Onboard Recorder
• The Codex Onboard Recorder is the start of your
file based workflow. It can record anything, from
HD for television to the highest quality digital
cinematography cameras.
• The Codex Onboard can record uncompressed or
wavelet cinema quality HD material – plus audio
and metadata – onto a single, removable data
pack. When shooting is done, it offloads material
much faster than real-time – typically three to
five times faster.
19. Onboard Recorder-Data Pack
• Designed for use with the Codex Onboard
Recorder, this Datapack uses solid state
memory to provide highly robust performance
at the bandwidth required to record
uncompressed data from the highest
resolution digital cinema cameras. Up to 40m
record time, uncompressed Up to 256GB
capacity Solid state memory for consistent
performance and maximum security of data
21. Transfer Unit
• The Codex Transfer Station for Mac OS X is the
hub of your file-based workflow. It can be
easily configured to automatically provide a
full set of deliverables – everything you need
for your production and post, from viewing
copies to archives. And it can produce them all
in less time than traditional systems take to
make a single copy.
22.
23.
24. • Canon's 1Ds/5D and Nikon D3 series are the
most common full frame sensors. Canon
cameras such as the Rebel/60D/7D all have a
1.6X crop factor, whereas mainstream Nikon
SLR cameras have a 1.5X crop factor. The
above chart excludes the 1.3X crop
factor, which is used in Canon's 1D series
cameras.
25. • Camera phones and other compact cameras
use sensor sizes in the range of ~1/4" to 2/3".
Olympus, Fuji and Kodak all teamed up to
create a standard 4/3 system, which has a 2X
crop factor compared to 35 mm film.
• Medium format and larger sensors
exist, however these are far less common and
currently prohibitively expensive.
26. • The crop factor is the sensor's diagonal size
compared to a full-frame 35 mm sensor. It is
called this because when using a 35 mm lens,
such a sensor effectively crops out this much
of the image at its exterior (due to its limited
size).
27. • One might initially think that throwing away
image information is never ideal, however it
does have its advantages. Nearly all lenses are
sharpest at their centers, while quality
degrades progressively toward to the edges.
This means that a cropped sensor effectively
discards the lowest quality portions of the
image, which is quite useful when using low
quality lenses (as these typically have the
worst edge quality).
28. • Additionally, the optical performance of wide
angle lenses is rarely as good as longer focal
lengths. Since a cropped sensor is forced to use a
wider angle lens to produce the same angle of
view as a larger sensor, this can degrade quality.
Smaller sensors also enlarge the center region of
the lens more, so its resolution limit is likely to be
more apparent for lower quality lenses. See the
tutorial on camera lens quality for more on this.
29. • Similarly, the focal length multiplier relates
the focal length of a lens used on a smaller
format to a 35 mm lens producing an
equivalent angle of view, and is equal to the
crop factor. This means that a 50 mm lens
used on a sensor with a 1.6X crop factor
would produce the same field of view as a 1.6
x 50 = 80 mm lens on a 35 mm full frame
sensor.
