Digital Cameras

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					An Introduction to Digital
      Photography
         What you want
              &
         What you need
Contents
• The right System      • Focus & Composition
• MPX-Megapixels (a     • Software (in camera)
  definition)
                        • Shutter Speeds
• Picking a Camera
  (Usage)               • Storage

• Photography Options   • Power & Flash

• Optical & Digital     • Viewfinders
  Zoom                  • Managing your
• Lenses                  Pictures (next class)
Suggested Amateur System

• MAC with 64MG RAM OR PC WITH 128MG RAM &
  10 to 20 Gig Hard drive w/Serial & USB ports
• 15” Display w/800 x 600 (64K Colors)
• Imaging software (Photo deluxe, Picture It)
• 600 DPI Color Scanner & 8X CD-RW drive or zip
  drive for storing pictures.
• Color Printer capable of 2400X1200DPI (HP
  Photosmart 1215 5ppm)
Suggested Advanced System
• MAC with 128MG RAM OR PENT 4 PC WITH 256MG
  RAM 512 IS BETTER & 40 to 60 Gig Hard drive
  w/Serial & USB ports
• 17” Display w/1024 x 768 (16M Colors)
• Imaging software (Adobe Photo Shop) or other
  w/levels and curves.
• 1200 DPI Color Scanner & 12X CD-RW drive or
  250Meg zip drive for storing pictures.
• Color Printer capable of 2400 X 1200DPI (HP
  PhotoSmart 1315 17ppm)
When Configuring a System
• Don’t upgrade, consider a new system &
  hardware (most PC systems 2yrs or older
  will not support WinXP)
• If you decide to upgrade, insure system
  will support hardware (drivers,
  applications, etc.)
• If get new system w/WinXP, be sure the
  hardware & software you select or use
  will run on XP
MPX-Megapixels (a definition)
• The measurement for digital cameras
  that shows you how many picture
  elements are in the Charged Coupled
  Device (CCD) in your camera (most
  cameras).
• A picture element is a light sensitive
  diode which convert photons (light) into
  electrons (electrical charge).
• For this presentation measurement is
  expressed in mpx
Current Photography Option
• An inexpensive option if you have a
  35mm camera, & you require prints
  – Develop pictures and request Kodak CD
  – Possibly update your system to add add’l
    memory to insure reasonable print speed
Picking a Camera (Usage)

• Email to family & friends
• No need for quality
  – 1 mpx Camera w/internal storage
  – Present system is OK no need to upgrade
Picking a Camera (Usage)

• 3x4 or 4x6 Prints for albums or reg. mail
  – 1.2 to 2 mpx Camera w/storage media
  – Purchase 2 sets of rechargeable batteries
  – and an extra storage card.
  – Use Amateur System specs.
Picking a Camera (Usage)

• 5x7 Prints for Framing
  – 2 + mpx Camera w/storage media and 2x
    optical zoom and extra cards
  – Purchase 2 sets of rechargeable batteries
  – Use Amateur System specs.
  – For printing of Personal Photos, use
    suggested scanner on System specs.
Picking a Camera (Usage)

• 8 x 10 Prints to enhance w/imaging
  software; Photo quality
  – 3.3 mpx Camera w/internal storage & 4 x
    optical zoom, li ion or nimh battery
  – 128 to 356 extra card storage
  – Use Advanced System specs.
  – For printing of Personal Photos, use
    suggested scanner on System specs.
Picking a Camera (Usage)

• A professional and advanced amateur, I
  need 11 x 14 for publication, & a larger
  – 4 - 5 mpx or 6-7mpx SLR with inter
    changeable lenses &li ion or nimh battery
  – Upgrade Advanced System with add’l
    memory (512MB +) for faster printing of
    high resolution prints
  Pixel      File     Acceptable      Print size that
   Size      Size       Prints        gives results
                                     Comparable to
                                     35mm Quality
                                         (300) dpi
640 x 480    900K     2x3-inches    Small Thumbnails
                                           only
1024 x 768   2 MB     3x5-inches    Large Thumbnails
                                      (2x3 inches)
 1-MPX        3 MB    4x6-inches        3x5-inches
 2-MPX        6 MB    5x7-inches        4x6-inches
 3-MPX        9 MB    8x10-inches       5x7-inches
 6-MPX       20 MB   11x14-inches      8x10-inches
Possible Photography Option
• An option if you have a 35mm camera, &
  you have color slides
  – Develop pictures add a 35mm slide scanner
    (to scan slides or negatives) to Advanced
    System
  – Upgrade Advanced System to a 6 color or
    dye sublimation printer (to print quality
    prints)
Optical & Digital Zoom (defin.)

• Optical zoom is the amount of zoom
  optically performed by the camera lens.
• Digital Zoom is actually in-camera
  cropping which is performed by selecting
  a portion of a picture which reduces
  available pixels for printing
      Optical & Digital Zoom
       (recommendation)
• Digital zoom should not be considered in
  the purchase of a digital camera. It can
  be performed with Photo applications.
• For most of you, 2 to 4 x optical zoom
  should be sufficient
• For those with advanced requirements,
  there are cameras with higher optical
  zoom (Up to 10x). >10x requires the
  purchase of an add’l lens.
Lenses
• Most digital cameras come with:
  – No Lens cap
  – Automatic Lens cap
  – A removable cap
  – Clam shell design

• Recommend Clam Shell OR AUTO CAP to
  protect lens
Focus & Composition
• Focus - Some cameras have a macro
  feature for photographing close subjects
  (i.e. flowers)
• Composition - Some cameras allow you
  to compose the picture through the main
  lens (SLR), but these are expensive
• There are some w/digital viewfinders
Software (in camera)

• New Technology
• Must learn (read the directions)
• Windows similar to your computer
• Most have Automatic or Dummy mode
Behind the windows

• Film speed, shutter speed, shoot menu
• Movies, sound, burst, Best Shot
• Playback, PIM, white balance,
• Folders, metering, flash modes
Shutter Speeds
• The fastest shutter speeds offered on
  most digital cameras are between
  1/500th & 1/1000th of a sec. (for action
  events)
• If you want a picture of stars at night or
  city at night, you need at least 4 sec.
  exposure. So, choose your model
  accordingly.
More on Storage (Digital Film)
• Storage - Sometimes called digital film.
  All but the cheapest cameras come with
  a removable memory card.
• This feature is the main advantage over
  film cameras, but unless you have a
  place to store pictures (laptop), buy
  additional memory cards. The price has
  come down, so you can add 64 and
  128mg and higher cards.
Power & Flash

• Power - All cameras are battery operated
  with either AA or lithium ion. Though
  both can be recharged, AA’s take up to
  12 hours and lithium ions 90min. Also
  lithium ions have longer battery life.
• Flash - Most cameras come with built-in
  flash. You may require an additional
  attachment for more light. Check if your
  camera will allow external flash
Viewfinders
• All cameras have an optical viewfinder,
  and most have an LCD.
• The LCD doubles as a viewfinder, and a
  display to view shots in storage.
• If you don’t like the picture, just delete it
  in the camera, and make the space
  available for another picture.
• The LCD also allows you to set other
  functions in the camera
BUYING THE CAMERA

• What comes with full priced camera?
• Catalog pricing
• Internet pricing
• Questions you should ask
Managing your pictures
• There are many pieces of software to
  manage your pictures. Once your
  pictures are downloaded, you can find
  software to adjust your picture (cropping,
  brightness, contrast, redeye, etc.), create
  albums, and manage space for output
  onto photo paper (glossy paper).
• Another Presentation
      Questions & Answers

• On any subject...

				
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