Zoom into any photo far past what it holds. Four steps of 4x take you to 256x, each one drawn from the last. Push it to eight steps if you want.
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Each step is 4x. 4 steps reach 256x, 8 reach 65536x. Fewer steps finish sooner.
Showing an example. Upload a photo, then press Zoom in.
An example run. Upload a photo above to make your own.
Left is the plain enlargement that step began from, right is what OracleZoom drew. Switching is free.