How many megapixels is the camera of the new ipod 4g?

0.1 megapixel camera image

UP

i'm getting a new ipod 4g but i just want to know how many megapixels the camera is :)

Answer
2 megapixels camera
http://www.amazon.com/gp/feature.html/ref=amb_link_180729822_3?ie=UTF8&docId=1000577181&pf_rd_m=ATVPDKIKX0DER&pf_rd_s=top-1&pf_rd_r=05WXN4NBX2QXAJX2JX0M&pf_rd_t=301&pf_rd_p=1273986862&pf_rd_i=ipod%20touch%20&tag=klnprk-20

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How many megapixels would a camera need to resolve individual atoms?

Ken

Purely a hypothetical question, just say you were to take a photo and then zoom in on the raw image till rather than pixelation we are greeted by details at the atomic level - just how many megapixels would a camera require? (actually gigapixels would probably be a more appropriate turn of phrase)

Answer
Won't work - you'll run out of light befor you'll be able to see atoms.

As you may be aware, light has wave characterisitics, and (unless you do som _very_ fancy tricks), you won't be able to see anything smaller than the wavelength of light (and even with those fancy tricks, you'll gain maybe a factor of 10). As for the numbers: wavelength of visible light is (roughly) in the 350...700 nm range, while atoms are in the 100 pm (=0.1 nm) range (and below).

Next few problems: how will you deal with the atoms in the lens(es) and the air (inside the camera, inside the lens, between lens and object)?

Oh, and finally, the number of (mega)pixels is irrelvant for your question - at least unless you state the sensor size and focal length of the lens (and, if you want to be exact, the diameter of the circle of confusion).

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