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Even with adaptive optics you still won't get close to the diffraction limit. > Also, the increase in CCD densities have become enormous in the past few years.
by Florin_Andrei 16y ago
Even with adaptive optics you still won't get close to the diffraction limit.
> Also, the increase in CCD densities have become enormous in the past few years. So it might be possible to make a matrix that could resolve the flag in the near future.
You can't work around the diffraction limit. There's no CCD that could compensate for the lack of the 5 km aperture required. You must have at least 2 (more like 3 or 4) pieces of glass separated by 5 km or more, otherwise nothing would work.
- gaika 16y agoYes, you can break below diffraction limit. See http://en.wikipedia.org/wiki/Super-resolution http://en.wikipedia.org/wiki/Super-resolution
- hartror 16y agoNo you are still constrained by the limit, super resolution only works with the information that is captured. The diffraction limit isn't a hard line limit rather the information disappears into noise as you go past the limit. So what SR does is use multiple images to remove the noise for details close to the limit using some neat algorithms. But noise quickly overcomes the information as you push against the limit.