Key West Naval Air Station Introduction to Digital Photography Earl D. Gates Overview • Quick overview of what this workshop is all about • • • • Identifying the Hardware Developing a digital image workflow Photographic Techniques Image Editing Hardware Terminology • Digital Camera (Digicam) • • • • Megapixels File Format Batteries Lens • Scanners • Flat Bed • Film Digital Imaging Workflow 1.Preparation 2.Shooting 3.Transferring 4.Organizing 5.Processing 6.Archiving 7.Outputting Photographic Techniques • • • • Composition People Landscape Pets Image Editing • Software • Tools • Special Effects Resources • • • • Internet Magazines Books Workshops Summary • Review topics • Identify level to achieve • What Next? Preparation Select digicam and accessories Check batteries Clean the camera Adjust controls Extra memory cards Field storage Back Shooting Back Autofocus White balance Set other controls Review images Remove unwanted images Back Transferring Decide on a transfer location Memory card transfer Cable transfer Infrared transfer Back Organizing Sort through images Print contact sheets Rank images in groups Separate the keepers Back Processing Working file format (TIFF) Evaluate images Make overall adjustments Make local adjustments Save as master Sharpen image Back Archiving Organize Choose medium Make multiple backups Delete all unnecessary copies of image Back Outputting Select output File format Email Slide shows Prints Back Composition Learn to see Rules of thirds Viewfinder awareness Simplicity Back People Lens Lighting Posing Props Groups Back Landscapes Lens Lighting Back Pets Lens Red Eye Back Software Photoshop Photoshop Elements Included with camera Back Tools Opening, saving and deleting Cropping Adjusting brightness, contrast and color Sharpening Removal tools - redeye, dirt, scratch, noise Back Special Effects Filters Masks Back How Many Megapixels? MP 4X6 5X7 8X10 11X14 16X20 2 Exc Good Fair Poor Poor 3 Exc Exc Good Fair Poor 4 Exc Exc Exc Good Fair 5 Exc Exc Exc Exc Good 8 Exc Exc Exc Exc Exc 11 Exc Exc Exc Exc Exc Back File Format Refers to the way the computer stores the data More common formats include: JPEG EXIF TIFF RAW JPEG Stands for Joint Photography Experts Group Most widely used format Biggest advantage - can compress image data Do not edit JPEG images in photo-editing programs to minimize data loss EXIF Stands for Exchange Image File Format Used by many digicams Is a variation of the JPEG format Stores extra data as metadata with the image file Metadata stores shutter speed, aperture, and other capture settings TIFF Stands for Tagged Image File Format Is the choice for bringing images into publishing programs Does not compress as much as JPEG Choose when picture quality is more important than file size RAW Simply means raw Used by high-resolution digicams Does not include any in-camera processing features Provides a truer version of the scene in front of the camera Large file size Back Rechargeable Batteries Must Know Info Why Batteries? Batteries are the soul of photographic equipment Battery Types Rechargeable Nickel-Cadmium (NiCd) Nickel-Metal Hydride (NiMH) Lithium Ion (Li-ion) NiCd Batteries Memory effect NiMH Batteries More widespread Li-ion Batteries Proprietary for specific cameras Milliampere hours (mAh) Refers to how long the battery will last Back Its About The Speed Lenses Why does speed matter? The more light a lens gathers, the less time it needs to hold the shutter open for proper exposure Zoom Lens Maximum zoom is hard to hold camera steady for a sharp picture Shutter Speed Slowest shutter speed without a tripod is 1/focal length of lens (Based on 35mm equivalent) To Avoid The Shakes Image stabilization: Using gyro-sensors to detect shakes and compensate Allows image to be shot at slower shutter speed