Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

Digital Media 2 Cameras

553 views

Published on

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

Published in: Art & Photos, Business
  • Be the first to comment

  • Be the first to like this

Digital Media 2 Cameras

  1. 1. Digital Media Producion Com 3340 Amani Channel, MA
  2. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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)

×