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rumblefish

Member Since 03 Oct 2006
Offline Last Active Dec 08 2014 12:32 PM
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#330066 Underwater sunset

Posted by rumblefish on 21 April 2013 - 09:35 AM

Took this shot yesterday evening at sunset; first time I photographed a diver this time of day.

Visibility was pretty bad, < 3 meters with lots of sand particles floating around. 1/30 @ f13, iso 200, Tokina 10-17 at 16mm, strobes half power. 

--Rob

Attached Images

  • 200413Droogpak-shoot-416-Edit.jpg



#327984 Nikon AF-S Nikkor 24mm f/1.4G ED Wide Angle Lens for underwater

Posted by rumblefish on 16 March 2013 - 03:47 AM

Here are the test shots I promised. It's the Sigma 24mm 2.8 with a +4 diopter, behind the Subal 4" compact dome port. Just about usable down to f8, any wider and corner unsharpness and vignetting increase dramatically. 

However, when you're shooting close focus wide angle, it's a different issue (my static fish @ f2.8) 

Attached Images

  • 24minidome-2.jpg
  • 24minidome-3.jpg
  • 24minidome-5.jpg
  • Test24cfwa-1.jpg



#327980 Tokina 10-17 dome port comparison

Posted by rumblefish on 16 March 2013 - 03:38 AM

Hi all,

I made some unscientific test shots in the pool the other day, to see how the Tokina 10-17 FE performs on a 24 mp full frame camera behind two different dome ports. 

Camera: Nikon D600, Tokina on 15mm, ISO 6400 (ambient light), Aperture priority. Focus point was at the center. I ran the raw files through Lightroom to adjust white balance and lighting. No cropping, sharpening or noise reduction were applied. I sharpened for screen upon exporting to jpegs. 

 

First three shots using the Tokina 10-17FE behind Subal 4" minidome (DP-54 B)

Last three shots same lens behind Subal 6" dome (DP-SW B). No extension rings.

 

I guess f11 is the limit. At 15mm behind the 6" port the dome shade is visible in the corners (slight vignetting), limiting it's use to the long end. 

Best regards,

--Rob

Attached Images

  • 10-17minidome-1.jpg
  • 10-17minidome-2.jpg
  • 10-17minidome-3.jpg
  • 10-17dome-1.jpg
  • 10-17dome-2.jpg
  • 10-17dome-3.jpg



#327884 Nikon AF-S Nikkor 24mm f/1.4G ED Wide Angle Lens for underwater

Posted by rumblefish on 14 March 2013 - 11:04 AM

I'm off to the pool in an hour or so, will make some test shots behind minidome and post over the weekend. 




#327717 Nikon AF-S Nikkor 24mm f/1.4G ED Wide Angle Lens for underwater

Posted by rumblefish on 12 March 2013 - 12:06 PM

Hiya,

not exactly the same lens, but I use a Sigma 24mm f2.8 macro under water for small landscapes, animal and diver portraits (see example), in combination with a +4 diopter and a 4" minidome. I like it a lot. Topside it's great, too. 

I'm on full frame, on DX it becomes 35ish. 

Best regards,

--Rob

 

 

Attached Images

  • naamloos-49.jpg



#326611 Nikor 60mm Macro with wet diopter

Posted by rumblefish on 23 February 2013 - 10:48 AM

+1 for the 60mm macro if you're on DX. It's very versatile, I use it in combination with an extension tube and it gives me the opportunity to shoot fish portraits, small dioramas and macro in one dive. 

Switched to full frame now, had some fun this afternoon experimenting with macro setups. I learned that a reversed 50mm 1.8 on a Sigma 180 macro works well, see test shot below of the tip of a 0000 paintbrush (uncropped). Not sure how this would work under water though. 

Best regards,

--Rob

 

 

 

Attached Images

  • macrotest-1.jpg



#320907 Nikon D7000 underwater settings

Posted by rumblefish on 19 November 2012 - 11:51 AM

Nice. I like the opa and oma fiets too!