Introducing the PopPhoto Buying Guide, the Panasonic Lumix Gf2 and much more!

Introducing the PopPhoto Buying Guide, the Panasonic Lumix Gf2 and much more!	View this email online

	November 4, 2010 Breaking news from America's top photo magazines From the Forums: What methods do you use to ensure your images are properly backed up? Our readers share their thoughts. Join and Contribute!

	Introducing the PopPhoto Buying Guide New! Our database of every DSLR and lens worth your attention right now. How To: Pick the Right Camera Body Find out what factors you should consider when purchasing a new body. How To: Pick the Right Lens Get the right glass for your shooting style and your budget. New Gear: Panasonic Lumix DMC-GF2 Is Tiny, Touch-Friendly Panasonic's smallest Micro Four Thirds camera boasts a 3-inch touchscreen. Photo of the Day Think your photos have what it takes to be named Photo of the Day? Then upload your best shots to our Flickr page. See the whole gallery here TECH SUPPORT Understanding Noise Say you're tuning a radio to a station with a weak signal. You turn up the volume and hear static. Why? By amplifying the signal, you're also amplifying unwanted stray electronic bits: audio noise.? Electronic noise in digital photos has the same cause: Amplify a weak signal from an imaging sensor too much, and you also amplify stray electrons in the sensor or elsewhere in the circuitry. It shows up in your pictures as coarse grain or color mottling. A digital sensor is basically an array of tiny light meters, called pixels. Each pixel reads the light level at its spot on the sensor, and this measurement is bundled with those from the other pixels to make a picture file. But if the tiny meters get too little light, the signal they send will be too weak unless—yep—you amplify the signal. And by doing that, you turn up the volume on the noise. Read the full article

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