30mm f2.0 FOV vs panasonic 20mm 1.7

Everything is in the title - does anyone have both and want to post a comparison of FOV?
I understand that they're quite similar but also read that the 20 is more widish and the aspect ratio is obviously not the same on m43 as nx.
I'm still on the fence between investing further into nx or switch to m43 so any input would be very welcome.
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http://www.flickr.com/photos/59681676@N06/sets/