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Member Since 25 May 2005
Offline Last Active Oct 25 2015 02:22 AM

Posts I've Made

In Topic: Blending In - Lacy Bryozoan and its Inhabitants

24 October 2015 - 05:05 PM


In Topic: Devils in the sky at Cannibal rock,Komodo by GH4

16 September 2015 - 02:37 PM

Hi Nu,

Wow, what a great opportunity. Cannibal Rock is always a great dive but usually for Macro. You were lucky to be there when those rays arrived and also lucky to see them as it's usually a dive of intense focus towards the rock rather than out in the blue (actually, I should say "out in the green").

But, can I give you 3 pieces of advice.

1. Do some more color correction work on the footage. You have some reddish - purple in the highlights from the surface. With some careful secondary color correction, you should be able to pull that out.

2. Cut the yawning frog fish. This is what I call the "self-editors dilemma": you shot something interesting so you want to get it into the final cut, even though it has nothing to do with the storyline. An editor would chop it because it distracts from the story. The audience wonders what is the connection with the Rays. Is it yawning because the dive was boring before the Rays arrived? You get the point? No matter how much you love that shot, if it is not relevant to the story, it ends up on the cutting room floor. Maybe you can use it in a different story about yawning fish.

3. Don't use YouTube for quality footage. I'm sure that what you uploaded to YT looks great but their lousy compression ruins it. Especially bad in open water footage like this. Lots of ugly compression artefacts. Vimeo is better - not great, but better.

But, otherwise, great stuff!


In Topic: Sony a7s and MWB

18 August 2015 - 05:28 AM

IMHO, the Sony cameras have never been great at MWB underwater. The MWB software seems to be desperately looking for red.  You can fudge it with a pink plastic card but it's still a bit hit and miss.


Rather that stuff-around with MWB while diving, I prefer to be able to quickly get to a WB that approximates the conditions.  The typical conditions are:

  • Light blue colour cast - shallow, clear tropical water
  • Deep blue colour cast - deep, clear tropical water
  • Light blue-green colour cast - shallow tropical water with some suspended plankton
  • Deep blue-green-green colour cast - deeper tropical water and/or lots of suspended plankton
  • Video lights dominate (night, cave, etc.) - use AWB
So I made 4 A4 pages in PhotoShop that approximate each of those colour casts and printed them.  Then I put the pages in sunlight and took an MWB off each one, saving one into each of the 4 WB presets of the camera - then saving all the settings into the Custom Sets that I had already created for different exposure / focusing custom sets.
You can find the coloured pages in a PDF in this thread: http://wetpixel.com/...nce#entry355784

In Topic: Global shutter

04 August 2015 - 01:29 AM

As it mainly affects vertical lines, even if it was present in a camera system, it'd not be very obvious underwater, unless doing a pan over a shipwreck.


In Topic: 18 Years - A Story of a Broken Curse

24 July 2015 - 06:50 PM

Fantastic.  Loved every minute.