Depth of the front element means nothing. The lens that they used is very much an upgrade from the crappy lens that Yuneec is using. and if you can source the same lens for $50 I'd love to see where you get it. the $50 versions I have seen don't resolve enough line pairs for the 12mpix resolution of the camera. I've seen the $50 ones and they are suitable for 6mpix cameras
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