There was a retired physicist that refurbished an old aerial reconnaissance camera and painstakingly built a hybird film&#x2F;digital workflow that resulted in claimed resolution equivalent to several gigapixels. I can&#x27;t find his original site anywhere, but here&#x27;s a <i>Popular Mechanics</i> write up of it:<p><a href="http:&#x2F;&#x2F;www.popsci.com&#x2F;scitech&#x2F;article&#x2F;2005-10&#x2F;sharpest-image" rel="nofollow">http:&#x2F;&#x2F;www.popsci.com&#x2F;scitech&#x2F;article&#x2F;2005-10&#x2F;sharpest-image</a><p>It&#x27;s too bad because the original site had lots of technical detail and was a good lesson in understanding resolution limiting factors at each step of the image chain (e.g. effect of air density changes on sharpness of distant objects when shooting landscapes).<p>Update: hooray for archive.org. Check it out here:<p><a href="https:&#x2F;&#x2F;web.archive.org&#x2F;web&#x2F;20060218113103&#x2F;http:&#x2F;&#x2F;www.gigapxl.org&#x2F;" rel="nofollow">https:&#x2F;&#x2F;web.archive.org&#x2F;web&#x2F;20060218113103&#x2F;http:&#x2F;&#x2F;www.gigapx...</a>