Thursday, March 27, 2008

Quality Digital Cameras

2 megapixels = 2 million dots per picture
1440 dpi Epson/6 =240 dpi=true min res

zoom quality-2 types
-pay for optical
-use .psd for digital

lens quality
-Fast lenses, f2 faster than f4
-focus/sharpness

ccd chip
-charged coupled device
-converts light into electrical signals
-sent to analog-to-digital converter turns signals
into digits
-bigger pixels are better pixels, more light hits it
-Larger sensors *generally* also have larger pixels

histogram
-represents the colors within your image

new technology
image stabilization
-low light no shake

wider angle lenses
-25mm to 30mm compared to a standard 35mm

face recognition technology

key tips:
-buy for optical zoom
-stop at 6 megapixels
-get a good exposure

Thanks to these sources:
http://digital-photo-printing-review.toptenreviews.com/how-to-pick-the-perfectdigital-
camera.html
http://products.howstuffworks.com/digital-cameras-buying-guide.htm
http://www.news.com/More-megapixels,-better-photos-Fact-or-fiction/
2100-1041_3-6156398.html
http://www.cambridgeincolour.com/tutorials/digital-camera-sensor-size.htm
Liz’s photo book
http://www.nikonians.org/html/resources/guides/digital/histogram_101/histogram_
101_3.html

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