FIX G10/G11 dome port opinions?

Does anybody have any experience with this port for the G11/G10 FIX housings, sample photos, opinions etc. Thank you.

http://reefphoto.com/index.php?main_page=p...roducts_id=4003

Yes we have been selling that Fisheye Conversion lens since it came out for the Fix G10 housings. It will now fit the new Fix G11 housings when they start shipping in a week or two hopefully. The fisheye conversion lens is extremely sharp at the corners. 130 degrees is real wide, great for big animals and reef scenes. It is important to note it is NOT a wetmate lens. This is a port itself and must be changed before getting in the water.

Let me know if you have any other specific questions I can answer for you.

Thank you for the answer but still curious. I see that it claims a 130 degree FOV? Is this in your opinion a semi-fisheye lens? Which brings up another question, if it is not a lens but just a port, how does it achieve the wide FOV of 130 degrees?

How does it compare in performance to the Inon 100WAL with dome (130 degree FOV, semi-fisheye, obviously not on the G11, lol)?

Thanks.

Thank you for the answer but still curious. I see that it claims a 130 degree FOV? Is this in your opinion a semi-fisheye lens? Which brings up another question, if it is not a lens but just a port, how does it achieve the wide FOV of 130 degrees?

 

How does it compare in performance to the Inon 100WAL with dome (130 degree FOV, semi-fisheye, obviously not on the G11, lol)?

 

Thanks.

Water/Air refraction actually creates a lens. Specifically, the flat port creates a lens that narrows the field of view because light rays striking the glass at oblique angles are bent while light rays striking perpendicular are not. The dome port makes the glass perpendicular to the oblique light rays (that the lens would normally "see" in air) so they are not bent out of your FOV.

http://www.hydrooptix.com/ty_hydroflash_popup.html

Wet-mount lenses need glass to accomplish the same thing precisely because they are wet. Its the water/air transition through glass that makes the lens. When its water on both sides the glass, there isn't any effect. Naturally a Wider angle lens on the camera could produce a wider field of view, but that would require a more extreme dome port.

Though you can't swap it out under water, I think the dome port is a way better solution for WA. Every piece of glass you put in front of your camera reduces available light and introduces distortion and chromatic abberation. The dome port is zero-sum loss since the flat port is replaced.

safe diving,

bullshark

Thanks, yes, I understand but the G11/10 have a 28mm native lens which dome corrected is a 64 degree FOV. The FIX lens shows it has a 165 degree FOV so there must be additional elements beyond a simple dome.

I would also prefer a dry mount saving for the convenience of being able to swap underwater but in practical use many people have had good luck with the wet lenses.

So, still I wonder, how does the dome/lens for the G11 compare to the wet mount version in construction and operation?

Here's a quick example of a shot made with the FIX Super Wide lens Port (165 degrees). I've only been at the underwater stills thing for two or three months now so I apologize for not knowing how to edit it properly (Colors, Ect...). Hopefully this helps...