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Digital Photography Made Easy

Digital Photography Made Easy. With Jim Battles Battles Photography. Digital Photography Made Easy. …or so we think. Disclaimer:. Although I use digital photography daily and am the one teaching this class…. Disclaimer:. …I’m still learning too. Digital vs. film.

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Digital Photography Made Easy

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  1. Digital Photography Made Easy With Jim Battles Battles Photography

  2. Digital Photography Made Easy …or so we think

  3. Disclaimer: Although I use digital photography daily and am the one teaching this class…

  4. Disclaimer: …I’m still learning too.

  5. Digital vs. film •lower costs after startup •more efficient workflow •no scan/sep costs •instant gratification

  6. Hardware Camera: •professional vs. consumer •controls •MP rating

  7. Hardware Camera: •optical or digital zoom •media

  8. Hardware Computer: •Lots of RAM •Color calibration •Data transfer interface

  9. Software •Image capture •Image manipulation (Photoshop, etc.)

  10. Image controls •white balance •color balance •sharpen •compression •zoom (optical)

  11. Image controls General rule of thumb: Don’t use most image control functions in-camera. Apply them afterward.

  12. Remember: All rules of photography still apply!

  13. Terms Capture: The act of taking a digital photograph

  14. Terms CCD: Charge Couple Device, the image capture area in the camera

  15. Terms Removable Media: Temporary storage of data in camera

  16. Terms Formatting: The act of initializing or erasing images from removable media

  17. Terms RGB: Red, Green, Blue The colors computers work with

  18. Terms CMYK: Cyan, Magenta, Yellow, Black, The colors printers work with

  19. Terms Pixel: The basic building block of digital (bitmap) images

  20. Terms Mega Pixel: Millions of pixels; total number of pixels captured by a camera

  21. Terms File format: “Container” into which digital data is stored

  22. Terms File formats: •TIFF •JPEG •RAW (NEF, etc.)

  23. Terms Resolution: Number or size of pixels in an image

  24. You say you want a Resolution…

  25. Did you know…. All digital photographs are actually black and white images

  26. Example: 2 bit color

  27. Term Bit: Binary digit; 0 or 1, Black or white

  28. Example: greyscale

  29. Term Greyscale: An image rendered in black, white and shades of grey

  30. Example full color

  31. 2 bits, 4 bits, 8 bits, A dollar? No, a channel

  32. Example another full color

  33. Resolution Pixel depth/ bit depth: How many bits of information per pixel is captured

  34. Resolution 2 bits x 2 bits x 2 bits = pixel depth of 8 bits

  35. Greyscale An 8-bit greyscale image can render 256 different tones from black to white

  36. Let’s do some math Red chanel=256 tones X Green chanel= 256 tones X Blue chanel= 256 tones =16,777,216 possible colors

  37. Resolution Factors: pixel depth, image size and resolution (dpi) •Affects file size

  38. Resolution •8x10 image @ 600ppi 1 bit (B&W)=3.6 MB 8 bits (greyscale)=28.8MB 24 bits (RGB)=86.4 MB 32 bits (CMYK)=115.2 MB

  39. ATTENTION! The “powers that be” request that you pay specific attention to the following information

  40. Resolution For commercial printing: dpi/lpi/ppi 300

  41. Resolution @ 300dpi: 1 MP = 3”x 3” 2 MP= 3”x 6” 3 MP= 5.6” x 5.6” 4 MP= 6” x 6” 5 MP= 7” x 7” 6 MP = 6” x 20” 16 MP= 13”x13”

  42. Resolution Please note that screen resolution is 72 dpi

  43. Image controls Many found in-camera are also found in image manipulation software

  44. Image controls Save images unchanged: •treat like negatives •backup in case of error

  45. Image controls White Balance: Camera setting to match the lighting conditions

  46. Image controls Color balance: Image settings between cyan/red, magenta/green, yellow/blue

  47. Image controls Sharpen vs USM (UnSharpMask)

  48. Terms Artifacts: Nasty, little globs of high contrast goo from oversharpening

  49. Terms Noise: Specks in image due to long exposure time or high ISO

  50. Example noise

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