Saturday, June 6, 2009

Photography
Composition
  • foreground - gives an anchor or base for your image
  • background
  • framing
  • Rule of Thirds - the key concepts in the picture should be aligned with the intersection of thirds drawn across the picture
  • The "motion" of the picture - where your eyes move through the photo
  • Depth of Field - what in the picture is in focus - how far back is the image in focus
Edward Weston
  • Group F64
  • "Composition is the strongest way of seeing."
  • Good composition is seeing the scene in the strongest possible way
Camera Controls - Getting the correct exposure
  • Aperature - opening of the lens - measured in f## (f 32, f22, f64, f2.8, etc.) - higher number = smaller opening and deeper field of view; the smaller the f number, the shorter the field of view
  • Shutter Speed - how much time lapses with the shutter open
  • ISO (film speed) - a measure of light sensitivity - In a digital camera low is 200 (not very sensitive to light), high up to 2000 (very sensitive to light)
  • Light - measured in lumens (nature, flash, reflector, etc.)
Adobe Bridge
Nicon Cameras
Sony or Cannon Video Cameras

File Differences
  • .jpg -- 16 million pixels (aka. 16 million colors) - lossy (it throws away pixels every time you save it)
  • .gif -- 256 colors - lossy - 1 color transparency
  • .png -- 24 million colors - alpha channel transparency (can support multiple transparent layers) - better for drop shadows, gradients - 8 bit .png can hold 256 colors - 24 bit .png can hold 24 million colors
Old browsers can't read .png files, but most computers now can.

Raw Files - mimic exactly what comes off the camera
  • .raw
  • .dng
  • .nef
-Some cheaper cameras can't save raw files, so they automatically dump pixels. It flattens the image right away.
-If you set your camera to save as a raw file, it will keep all the pixels and all the layers. It takes double the memory, but you've got great bit-depth of information.
-You need to have a program that can support/read/edit raw files.
  • iPhoto
  • Aperature
  • Adobe Photoshop Lightroom
  • Raw Therapy (for Windows or Lennox)
  • www.gimp.org
Photoshop
Ctrl 0 = fit to fill
Ctrl
ppi = pixels per inch

Don't adjust the size of your photo. Maybe later if you need to put it on the web, but not while working on it.
You want to get rid of the 18% gray and get the color back into your photos.

Image Adjustment
1) Levels
Use the left and right arrows to re-center the levels histogram, move the center arrow (gamma) to adjust the gray and for color and vibrance
2) Hue - the color
Saturation - how much color
3) Exposure

To adjust parts of your photos to different levels, select or create another layer of the image, go to Image then Adjustments menu after selecting just the areas you want to adjust

Quick Masking Mode - refine what you have selected with the quick selector tool - when using it, use the paint brush to paint black (deselect) or white (select) to refine what you have selected.

Clone Stamp - copy another area on photo - set the target using the alt key
Healing Brush - takes out continuous blemishes - set the target using the alt key
Red Eye - takes out red hue from eyes - need to set the pupil size and darkness level

To Export:
Change Image size to 250-500 pixels
Save for Web & Devices - Use presets, medium

Accessibility Color Wheel
Color Jack

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