Canon G15 + WD-4

jim2386 · Aug 13, 2013

I was testing my g15 with and without the WD-4 wide angle lens and the results are below. I'm assuming I'm seeing no magnification because of the lack of water between the lenses? I'm used to the W-20 lens which produces a near fisheye effect on land. I figured I'd at least see something with and without the lens. Can I get some clarification?

Thanks
Jim

Ikelite Staff · Aug 16, 2013

jim2386:
I was testing my g15 with and without the WD-4 wide angle lens and the results are below. I'm assuming I'm seeing no magnification because of the lack of water between the lenses? I'm used to the W-20 lens which produces a near fisheye effect on land. I figured I'd at least see something with and without the lens. Can I get some clarification?

Thanks
Jim

View attachment 163214 View attachment 163215

Jim,

Above water the WD-4 is simply a clear window. Underwater, the WD-4 returns the 30% loss in coverage angle caused by light refraction. In other words, the WD-4 returns the the coverage angle of the camera lens that is lost underwater, but does not allow you to go wider than the G15 28mm capability.

Best Regards,

Brett Foster - Ikelite

Canon G15 + WD-4

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jim2386

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