![]() They don't.Īt the lowest "magnification" of the usb scope mentioned above, the image is the smallest and the resolution/sq.cm. I use a 40" monitor, so I guess some of these USB photos are thousand of power magnification, and they should be able to show bacteria easily. "2.0 Megapixels, up to 250x magnification (Note: Final magnification corresponds to monitor size)" ![]() This is from the first amazon scope mentioned To get 100X with almost all USB scopes, they measure magnification by the final size of the image. ![]() 100X in compound scopes is the magnification of one lens ( ocular) X the other ( objective). Do not take the magnifications given seriously as compared to the magnification of the loupe or actual compound microscope ( stereo or singular lens system).
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