Second lecture for Com 3340 Kennesaw State University Digital Media Prouction - Fall 2013 Amani Channel, MA

1. Digital Media Producion
Com 3340
Amani Channel, MA

2. Review
Pop Quiz
Why do we need media?
Why is storytelling important?
What are the 3 stages of production?
What pop star’s performance caused a huge
controversy?
Explain how you should compose a shot. Rule of ___.
Bonus: Explain the difference between 16:9/4:3

3. Light and the Lens: Key to processing and capturing
and image (image plane)
Lens are curved glass elements that bend light and
focus an upside down reflection onto a light sensitive
surface or image plane
Image plane: Film or a computer chip (CCD, CMOS)
The Window of the Camera

4. Key Terms
Focal Length: Center of the glass element (lens) to
the image plane
Lens characteristics:
Wide Angle - Short focal length-wide field of view
Normal – Similar to the eye
Telephoto – Narrow field of view – long focal length

5. Characteristics - Technical
Wide angel lens – Barrel distortion – increases depth
perception, minimizes shake
Telephoto lens – Compress depth – Softens image –
exaggerates camera shake
Aperture - Movable blades control light
Iris = pupil
Aperture - Diameter of the opening
Measurement - f-stops

6. Technical (con’t)
Shutter Speed - The time the each frame of video is
exposed to light
Shutter – Allows light to enter the lens and expose
the light sensitive material on the image plane
(length of time)
Fast shutter speed - freezes action, slow - blur image
Aperture and shutter speed produce an image

7. It Must Look Right
Focus – Adjusting the lens elements to the position
that allows the reflected light to converge, creating a
sharply defined image.
Depth of Field - Area that the image appears to be in
focus
Shallow Focus – Directs the viewers attention to what
is sharp
Deep Focus – Allows the viewer to choose what to look
at
Three variables for depth of field – Aperture,
camera/subject distance/focal length p.58

8. It Must Look Right
Resolution – Clarity of the image
Analog vs Digital – Generational loss (analog) –
Sampling - Reproduction without noise
SLR- Pro camera (Single-Lens Reflex)
Digital – CCD or CMOS sensors
Pixels (picture elements) electronic signal that
becomes a digital representation of the image
Resolution Pixels=detail in the image
5184x3456 (18 megapixel) -720x480 low quality

9. Compression – Digital Video
Compression – Reduces the file by discarding
redundant info
Digital Video – Digital TV doesn’t equal HD
Analog TVs require a digital converter
Digital video can be SD or HD
Resolution 1280x720 1920X1080 Interlaced: Two fields –
odd and even are scanned (1080i)
Progressive: Each line is scanned in order (top to
bottom 720p or 1080p) p.72

10. In Class Assignment
Still Shoot
30-Minutes
Find a static object on any floor of the building
Shoot 6 creative images/each must be unique
Use rule of thirds
Wide/Medium/Close ups
Pleasing angles
Photo examples:
http://www.exposureguide.com/photography-
basics.htm

11. Class Discussion/Critique
Get in groups of two
10-20 minutes
Exchange cameras
Write down a critique of the photos/include person’s
name
Are the shots well framed? Lighting? Do you know
what the subject is?
Discussion and/or Turn In

12. Video Cameras
Tape based
Beta SP (Professional – SD)
MiniDV (Prosumer/Consumer – SD 4:3/16:9
Tapeless
Smartphone
SDHC (SD Card)
HDSLR (Compact Flash)
Red (Cinema Camera)
Black Magic (Pocket Camera/Cinema Camera)

13. First Assignment
Due 9/12/13
Groups of 2/Solo
Photo Essay
Real life news – event – person - activity
Write up/three paragraph minimum. 1 interview. 5Ws/H
Shoot sequence of 6-8 creative photos that tell a story
Use proper framing, composition techniques, focus, lighting
Project must be approved
Post the slide show & write up on the class blog (discuss next
week)