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Mastering the Tri-force

Mastering the Tri-force. Understanding the Exposure Triangle Hain-Lee Hsueh. I saved you, and found this triangle thing. Man, I got lost in these gnarly places and saw gnarly creatures! Should’ve seen them!. Pics or it didn’t happen. *giggle*. The Exposure Triangle. Shutter Speed. ISO.

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Mastering the Tri-force

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  1. Mastering the Tri-force Understanding the Exposure Triangle Hain-Lee Hsueh

  2. I saved you, and found this triangle thing.

  3. Man, I got lost in these gnarly places and saw gnarly creatures! Should’ve seen them!

  4. Pics or it didn’t happen. *giggle*

  5. The Exposure Triangle Shutter Speed ISO Aperture

  6. Objective Understand how each part of the triangle and combinations of settings affect the outcome of a photo. Shutter Speed How do I use this thing? ISO Aperture

  7. Teaching Part • Create a concept map that organizes how to tweak settings • Adjustments for each desired effect • Adjustments satisfying each constraint • Each setting can be increased, decreased, or fixed • Multiple tweaks can be AND-ed or OR-ed

  8. Example Partial Concept Map Reduce noise Decrease ISO Maintain DOF Fix aperture Soft Waterfall Effect Decrease shutter speed Fix ISO Maintain sharpness OR Increase exposure AND OR Decrease shutter speed Increase shutter speed Increase ISO Decrease ISO Increase aperture

  9. Assessment • Problem • Show given photo with suboptimal settings • List desired effects • List constraints needed to be satisfied • Answer • A list of actions (increase, decrease, fix) for relevant settings

  10. Example Problem • I want to retake the photo so that • Background is less blurry (higher DOF) • Subject is brighter • But… • I don’t want to introduce additional noise Answer: Decrease aperture, decrease shutter speed, fix ISO

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