Tuesday, March 1, 2005
It's Not Just Megapixels
Image quality in a digital camera is affected by much more than how many pixels fit its sensor
Recently, I received a letter from a young photographer friend asking about the issue of megapixels and digital cameras. He wanted to make a purchase and wondered if a slight increase in megapixels was worth the cost: "If one photograph was taken with a 6-megapixel camera and one with an 8-megapixel camera, when would you see a difference as the photos were enlarged?" To start, here's a crucial concept: all sensors aren't the same, even if they all produce quality images. There's a misconception that if two sensors have the same megapixels, say, 6, they're essentially the same, and that if two
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