If you visit Reef Photo or Google and translate Japanese you will find that there is both a wet mount version and a housing ring mount version, .42X, fisheye lens which should yield around 165 degree diagonal FOV. It claims .42X magnification. Specs are sparse but this seems to be the best bet for a G10 based outfit with the FIX housing. Specs are sparse as I said, best I see is the .42X so I am making a few assumptions, it seems there are versions of this lens with a screw on wet mount in various mm sizes up to 67 mm but I find the 67 mm only on Japanese pages.
Sooo, if this is useful or might impact any decisions it would seem for a G10, if price is no object, then the aluminum FIX housing and ultra wide port would be the dealio.
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Sooo, if this is useful or might impact any decisions it would seem for a G10, if price is no object, then the aluminum FIX housing and ultra wide port would be the dealio.
N