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Nikkor 50mm 1.8G Underwater ?


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#1 kazb

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Posted 10 January 2012 - 06:31 AM

Anyone tried this lens underwater ? Got it at christmas and just wondered if it is any good UW. And if so what port / dome do you use.

I have a D300S in a Sea&Sea housing with a dome.

Kenneth

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#2 Tom_Kline

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Posted 10 January 2012 - 08:29 AM

Anyone tried this lens underwater ? Got it at christmas and just wondered if it is any good UW. And if so what port / dome do you use.

I have a D300S in a Sea&Sea housing with a dome.

Kenneth


It does not focus close enough even for a 9" superdome (I tried). You will need to use a diopter which will negate some of the lens' optical corrections.

Thomas C. Kline, Jr., Ph. D.
Oceanography & Limnology
Canon EOS-1Ds MkII and MkIII and Nikon D1X, D2X, D2H cameras. Lens focal lengths ranging from 8 to 180mm for UW use. Seacam housings and remote control gear. Seacam 150D and 250D, Sea&Sea YS250, and Inon Z220 strobes.
www.flickr.com/photos/tomkline/

 

 


#3 Deep6

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Posted 10 January 2012 - 09:23 AM

It does not focus close enough even for a 9" superdome (I tried). You will need to use a diopter which will negate some of the lens' optical corrections.

While this is a fast lens, I don't see a use for it underwater. APS-C + flat port will be near 90 mm in FF and no close focus makes it undesiderable for u/w. IMHO.
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#4 Tom_Kline

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Posted 10 January 2012 - 10:28 AM

The central part of the virtual image generated by a dome port is mostly (exactly in the center) parallel with the image plane so one can get away with a larger aperture using lenses with narrower angles of view. For example I often use f/4.5 when shooting a 20mm lens on DX. I use at least f/8 on FF with a 20mm lens. I was interested in experimenting with the 50 1.4 when I did the test referred to above. Too bad the lens does not focus to one foot!!!


While this is a fast lens, I don't see a use for it underwater. APS-C + flat port will be near 90 mm in FF and no close focus makes it undesiderable for u/w. IMHO.
Bob


Thomas C. Kline, Jr., Ph. D.
Oceanography & Limnology
Canon EOS-1Ds MkII and MkIII and Nikon D1X, D2X, D2H cameras. Lens focal lengths ranging from 8 to 180mm for UW use. Seacam housings and remote control gear. Seacam 150D and 250D, Sea&Sea YS250, and Inon Z220 strobes.
www.flickr.com/photos/tomkline/