Flat lens - is this the breakthrough it seems to be?

Started Aug 12, 2013 | Discussions thread
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photoreddi Veteran Member • Posts: 6,526
That's a horse of another color...

ljfinger wrote:

meanwhile wrote:

Could this be the product to finally disproves the whole "you can't beat physics" argument to lenses needing to be a particular size?

Even if this lens worked perfectly for all wavelengths, it would only save length, not diameter. You can't get around needing aperture. Saving length would be nice, of course, but it's not the only dimension that matters.

Saving length would be more than nice. Assuming the unlikely, that it worked perfectly for all wavelengths, a 200mm f/2 or a 400mm f/2.8 with flat lens elements might have the same very wide front elements, but the glass itself might weigh mere grams, not kilograms, and could be shot hand held all day long.

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