Digital photography

Information about Digital photography

Published on April 26, 2009

Author: ankush85

Source: authorstream.com

Content

Digital Photography 101for Library Applications : Digital Photography 101for Library Applications Workshop Agenda : Workshop Agenda Digital Camera Overview Hints on Taking Photos Who Owns That Image? Photo Design and Repair Managing Your Digital Photo Collection Digital Camera Overview : Digital Camera Overview Why Digital Photography? : 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 : 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 : 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 : Digital Camera Case Sizes Listed in order of price Compact Micro Medium Large Pixel Depth : 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 : 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 : 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 : 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 : 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 : 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 : Alternative Memory Formats CF Mini hard drives IBM microdrive Up to 1 GB in storage Digital camera off-load units Now For Our Camera Tour… : Now For Our Camera Tour… Finally, Taking Photos… : Finally, Taking Photos… Before You Start : 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 : 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 & 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 & 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 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 : Example of Flash Icons Red eye reduction Forced flash Suppressed flash Red eye reduction plus slow synchro Slow synchro White Balance Control : 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 : 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 : 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? : Flattery Or Kindness? Avoid harsh shadows Try different viewpoints Use natural light instead of flash Red clothing will overpowerskin tones Hold Still! : 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 Connect That Camera… : Connect That Camera… Connecting to a Computer : 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? : 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 : 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 : 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 Objects Lighting Two lights are best 45° angle to object Measure distance of lights Use a “color key” for fine reproductions Camera Purchase Decision : Camera Purchase Decision Before You Choose : 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 : 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 : Bookmarks Topics to Visit Digital camera glossaries and dictionaries Digital camera overview Vendor web sites fordigital cameras andphotography Taking Photos Outdoors : Taking Photos Outdoors Outdoor Lighting : 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 : Taking Photos Outdoors Sunrise, sunset High noon Overcast Fill-in flash Few filters availablefor digital cameras Glare and reflections Dust and smog Legal Issues… : Legal Issues… Do The Right Thing! : Do The Right Thing! Get a signature release from your subjects Copyright considerations Infopeople course materialsavailable Signature Releases : 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 : Copyright Considerations Again, who owns that photograph? Legal issues Get permission! Protect your images Bookmarks Topics to Visit : Bookmarks Topics to Visit Infopeople course Library Laws For The Web Environment - 2002 Signature release samples Copyright law The Art Part… : The Art Part… Photo Design and Repair : Photo Design and Repair Design and color hints Cropping Resizing Color correction Design Hints : 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 : 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, 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 Hue, Saturation & Brightness : Hue, Saturation & Brightness Hue Intensity or gradation of color Saturation Chromatic purity - has color been diluted with white? Brightness Brilliance of a color relating to hue or saturation Color Impact : Color Impact Emotional impact of color What kind of message do you wish to convey? Reds “bleed” May overpower other parts of the image Color Hints : Color Hints The rule of threes in color Squint to see the values in the image Check proportions of color of two-to-one Cropping and Resizing : Cropping and Resizing Focus on the subject Get rid of clutter The web can only show so much! Reduce image file size Improve your design Software Can Correct Color : Software Can Correct Color Balance your color Correct bad lighting Punch up the values Increase the hue Photo & Graphics Software : Photo & Graphics Software Types of Software : Types of Software Beginner Apple iPhoto, Hypersnap, LviewPro Intermediate PaintShop Pro, Photoshop Elements Advanced Fireworks, Photoshop Camera software Exporting for Web and Print : Exporting for Web and Print Exporting For The Web : Exporting For The Web Use “save as” - keep original safe PC vs Macintosh color differences Reduce image and file size Crop image Resize image Change file format to jpg or gif Set resolution to 72 dpi Exporting For Print : Exporting For Print Use “save as” - keep original safe Use largest pixel size setting available for camera You won’t be able to take as many photos at a time, but the print quality will be greater Save to highest quality TIFF format setting Talk with your printer! Color-correct your monitor File Extensions : File Extensions JPEG (*.jpg) web graphics GIF (*.gif) flat color web graphics TIFF (*.tif) print graphics PSD (*.psd) Adobe Photoshop PNG (*.png) Fireworks PDF (*.pdf) Adobe Acrobat Proprietary extensions Digital Photos Can Be Huge! : Digital Photos Can Be Huge! Managing disk space Organizing your photos Types of file management software Infopeople course materials availableon digitization projects Don’t forget metadata! Bookmarks Topics to Visit : Bookmarks Topics to Visit Graphics software vendors Digital collections projects Infopeople course materials Planning To Digitize Your Treasures, 2000 Planning Your Digitization Project, 2001 Creating Web Images With Fireworks, 2002 Planning A Photo Session : Planning A Photo Session Back To Reality… : Back To Reality… What photos do you need (or want) to take for your library? How / where will you use these photos? What camera settings to use? What is the subject matter? Environment? What kind of lighting? Legal issues? Summary and Evaluation : Summary and Evaluation Overview of digital cameras Hints on taking photos Who owns that image? Design and color hints Managing your files and disk space

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