Digital Photography 101 for Library Applications
660 likes | 1.36k Vues
Digital Photography 101 for Library Applications. Instructor: Jeanne Moje jmmoje@berkeley.edu An Infopeople Workshop Winter 2004. Workshop Agenda. Digital Camera Overview Hints on Taking Photos Who Owns That Image? Photo Design and Repair Managing Your Digital Photo Collection.
Digital Photography 101 for Library Applications
E N D
Presentation Transcript
Digital Photography 101for Library Applications Instructor: Jeanne Moje jmmoje@berkeley.edu An Infopeople Workshop Winter 2004
Workshop Agenda • Digital Camera Overview • Hints on Taking Photos • Who Owns That Image? • Photo Design and Repair • Managing Your Digital Photo Collection
Why Digital Photography? • Advantage over film cameras • Immediate feedback / results • Don’t need to develop film • Ease of image manipulation • Add interest to your web site • Publicize and document library events • Pictures are worth a thousand words • Provide material for library displays
Overview of Digital Cameras • Lens types • Case sizes • Pixel depth • Zoom power • Storage media types • Older memory formats • Newer memory formats • Alternative memory formats
Lens Types • Regular fixed lens • with or without zoom • Digital SLR (single-lens reflex) • More control over depth of field • Interchangeable lenses • Large format • For incredible detail in a large image • Huge file sizes
Digital Camera Case Sizes • Listed in order of price • Compact • Micro • Medium • Large
Pixel Depth • Why would you want more pixels? • 3 megapixels • 4 megapixels • 5 megapixels • Foveon technology 3.4 • Three layers to each pixel • Equivalent to 10 megapixels
Pixel Print Comparison • To maintain quality, choose higher megapixel settings if you need larger print sizes • 1 megapixels ≅ 4 x 6 • 2 megapixels ≅ 5 x 7 • 3 megapixels ≅ 8 x 11 • 4 megapixels ≅ 11 x 14 • 5 megapixels ≅ 12 x 16
Zoom Power • Optical zoom changes the image by moving the lens • Digital zoom changes the image by cropping (enlarging the pixels) • Interchangeable lenses on SLR digital cameras – expensive! • Gives you more shutter speed control • Wide-angle, panoramic, specialty lenses
Types of Storage Media • Some can be used in multiple portable devices • Digital cameras, notebooks, PDAs, music players, car stereo • Standardize on a flash memory type • Secure Digital (SD) - up and coming • Compact Flash (CF) - still a good choice
Older Memory Formats • These formats are being phased out • SmartMedia (SM) • MultiMediaCard (MMC) • Mini-CDs, floppy disks • Compact Flash (CF) • More devices use CF that any other media type • High capacity
Newer Memory Formats • Memory stick (MS) • only used by Sony • xD-Picture Card • Fujifilm, Olympus • Projected highest capacity • Secure Digital (SD) • Projected highest use • Broadest support
Alternative Memory Formats • CF Mini hard drives • IBM microdrive • Up to 1 GB in storage • Digital camera off-load units
Before You Start • Practice with the camera • Double-check your camera settings • Carry extra batteries • Experiment with flash • How close to subject? • Test red-eye settings
Hints On Taking Photos • Use a tripod or lean against stationery object • Conserve batteries • Limit use of screen viewer • Is camera turned off when not in use?
Automatic & Forced Flash • Automatic • Fires automatically as required • Useful for ordinary photography • Forced Flash • Photograph backlit scenes • Use outside in shade • Color correct fluorescent light
Suppressed & Red-Eye Flash • Suppressed Flash • Indoors where flash is ineffective • Photos taken through glass • Red-Eye Reduction • Pre-flashes so subject’s eyes appear more natural • Fires automatically as required
Slow-Synchro Flash Types • Slow-Synchro • Slow shutter speed for taking pictures of people at night • Will show both subject and night time backdrop • Recommend tripod • Red-Eye Reduction plus Slow-Synchro
Example of Flash Icons Red eye reduction Red eye reduction plus slow synchro Forced flash Suppressed flash Slow synchro
White Balance Control • Will attempt to correct the color for given light sources such as: • Daylight fluorescents • Warm white fluorescents • Cool white fluorescents • Incandescent lights • Outdoors • Shade
Delayed Shutter Response • Anticipate shutter lag • Shutter delay varies between cameras • Ask your subject to hold still! • Image-writing delay while the camera stores the photo • Some cameras are able to store images more quickly
Taking Photos of People • Avoid red-eye • Use red-eye flash function • Ask subject to look away from flash • Use natural light • Don’t get too close • Distortion • You can crop image later
Flattery Or Kindness? • Avoid harsh shadows • Try different viewpoints • Use natural light instead of flash • Red clothing will overpowerskin tones
Hold Still! • Posing versus natural action • Take numerous photos of same pose • Subject may relax • Pose will look more natural • Shutter lag makes naturalaction shots difficult
Connecting to a Computer • Install camera software • Check camera battery charge or plug in power adapter • Choice of connections • Camera to computer • Memory media to computer • Copy or move files from camera to computer
Problems? • Where to go if you have problems with your camera • Camera batteries weak? • What if your computer won’t talk to the camera? • Software updates andother annoyances
Indoor Lighting • Fluorescent light is green • Incandescent light is red • North light bulbs are blue • “Color-corrected” light bulbs are best • Use two light sourcesif possible
Photographing Objects • Avoid parallax effect if object has straight lines • Align camera to object • Align lines of object with frame of viewfinder or LCD monitor • Use a tripod or stand • Macro lenses
Lighting Objects • Lighting • Two lights are best • 45° angle to object • Measure distance of lights • Use a “color key” for fine reproductions
Before You Choose • What is your budget? • Will it connect to your computer? • Evaluate your photographic needs • Pixel depth • Power supply requirements • Memory needs (16 MB to 1 GB+) • Do you have other portable devices? • Zoom capability needed?
How To Choose A Camera • Try out cameras for a good fit • Does it fit your hands? • Controls easy to locate? • Display screen large enough? • Light enough to carry? • Zoom power? • Purchase at a store or buy online? • Keep an eye on sale prices
Bookmarks Topics to Visit • Digital camera glossaries and dictionaries • Digital camera overview • Vendor web sites fordigital cameras andphotography
Outdoor Lighting • Sunlight causes shadows • North light is blue • Overcast days • Indirect lighting best for people • Use fill-in flash or reflector
Taking Photos Outdoors • Sunrise, sunset • High noon • Overcast • Fill-in flash • Few filters availablefor digital cameras • Glare and reflections • Dust and smog
Do The Right Thing! • Get a signature release from your subjects • Copyright considerations • Infopeople course materialsavailable
Signature Releases • Who owns that photograph? • If you put a photo of a person on the web, get a signature release • Legal issues • Sample signature releases
Copyright Considerations • Again, who owns that photograph? • Legal issues • Get permission! • Protect your images
Bookmarks Topics to Visit • Infopeople course • Library Laws For The Web Environment - 2002 • Signature release samples • Copyright law
Photo Design and Repair • Design and color hints • Cropping • Resizing • Color correction
Design Hints • View as abstract artwork (turn the photo upside down) • Save as black & white for a fresh view • Look at negative spaces • Avoid clutter
The Rule of Thirds in Design • Hum Beethoven’s Fifth • Imagine a tic-tac-toe grid on your image • Line objects on the grid • Offset the focal point within the composition • Check for proportions of two-to-one
Value, Contrast & Luminance • Value • Relative lightness or darkness of a color • Black & white photography helps you see value • Contrast • Difference between highest and lowest luminance values • Luminance relates to light