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Introduction To Digital Photography I - Basics

Introduction To Digital Photography I - Basics. Fritz Schneider Peacham Cybernetics. 15 th Century 19 th Century 20 th Century 21 st Century. Photography is not new. “Camera Obscura”. Tintypes, Daguerreotypes, etc. Film, paper, wide-spread use. Digital, electronic transmission.

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Introduction To Digital Photography I - Basics

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  1. Introduction To Digital PhotographyI - Basics Fritz Schneider Peacham Cybernetics

  2. 15th Century 19th Century 20th Century 21st Century Photography is not new “Camera Obscura”. Tintypes, Daguerreotypes, etc. Film, paper, wide-spread use. Digital, electronic transmission.

  3. Human Vision Focuses on part of scene Adjusts rapidly to light Continuously flits around Limited color range Color lost in low light

  4. Basics of Photography () Subject Lens Imaging surface Image storage Image retrieval

  5. Film Photography vs. Digital Subject Lens Film Developing Darkroom magic? Printing Subject Lens Sensor Memory Card Postprocessing Printing or Display or e-Mail or…

  6. How Photographs are used • Film • To make small prints to pass around • To make large prints to display • To make slides to be projected • Digital • To display on a screen • To send as e-mail • To share on the Internet • To build web sites • Occasionally to print out

  7. Economic Differences

  8. Characteristics of a Digital Camera • Lens quality • Size: Cell Phone vs. Pocket vs. Long Zoom vs. SLR • Memory type: Internal, SD, XD, Memory stick • Resolution in megapixels • Zoom range • Stabilization • User interface • Battery life

  9. How many Megapixels? • On screen? 1024 x 768 = .79 MP • Finest printing is 300 dpi, the resolution limit of the unaided human eye. • More allows you to crop it and still have detail. • Bigger pictures take longer to save and need a larger memory card.

  10. Sources of Information • Magazines (but they are often out of date) • Friends experience (not opinion) • Reviews • www.dpreview.com • Imaging Resources • Ignore the salesman!

  11. Basics of Photography • Composition • Focus • Exposure

  12. My Pet Peeve • Here we are in …

  13. Why are you taking the picture? • To prove I was there • To tell a story • Because it’s beautiful

  14. Composition: single subject Vs.

  15. Composition: Rule of Thirds vs.

  16. Composition: Lead the Eye

  17. Composition: People add interest

  18. Composition: Frame the subject

  19. Focus: Depth of Field • Wider aperture (f/2.8) has less depth of field • Telephoto has less depth of field

  20. Exposure • The camera has limited range. It does not see what you see. Washed out highlights Lost shadow detail

  21. Exposure: Special Conditions • Spot metering setting • Fill flash • Check White Balance • Half-press the shutter release • Reduce exposure for snow, sunrise, etc.

  22. Battery Life • If you have one, use the eye-level viewfinder as much as possible: the screen uses power • Turn off flash, be aware of red-eye feature • Carry a spare battery

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