Photographing Recommendations
It is highly recommended to use high ISO levels (e.g. 400) for superresolution processing. Camera automatically uses long exposures when ISO is low, and it leads to handshaking artifacts, that can significantly decrease the level of detail of the image. At the same time, the noise caused by high ISO can be efficiently reduced during superresolution processing.
There is yet another reason to use high ISO when performing superresolution. Most consumer-level and some pro- cameras have built-in sharpening, that is turned on at low ISO. This sharpening is very simple and imprecise. Unwanted artifacts (oversharpening halos) and the loss of some details may appear in the final result.
Images are aligned automatically, it means that you do not have to be rock-solid while taking them.
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