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Nick Hope

Sony DSC-RX100

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I had exactly the same problem with trying to set WB with my old FX1 in deeper water on a white board. Is there any reason you don't like to use the WB Kelvin settings easily accessible from the RX100? I admit that I've not had the opportunity to try these settings in the field, but I am keen to try them and not need to be continually trying to get a fix on a white/grey/pink board.

 

On other forum postings here there have been recommendations for 6500kelvin for shallow to mid depth colour correction, and 8000-9000k for deeper waters. The RX100 has so many options for tweaking WB (even using the miniature colour bias charts under the WB menu settings) and seeing the results immediately on screen it just seems to me that white boarding may be deemed 'old fashioned' in the future. I am of course speaking theoretically but I intend to try all this out offshore soon.

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I believe white balance on a slate is the way to go with the RX100 especially as you can tune it later anyway setting custom white balance is a pain in video hence the ideas on colour temperature, personally nothing can beat a slate+fine tuning so that is my way

 

Onto the footage a few things based on my experience with the RX100, I shot with filters for most of Raja Ampat trip now I think I should not have taken away that 1+1/3 f-stop away from the camera and used it to close aperture and increase depth of field

Not sure how you shot your wide angle but it looks like you were operating at wide aperture if you had video stabiliser in active mode that means the camera had shutter speed of 1/100 or 1/125 depending on PAL or NTSC this most likely means your aperture was f/1.8 which does not give sharp corners with the RX100

When I look at your close ups they look excellent and the colour balance is always correct so I think next time leave the filter at home and try to close the aperture a bit to increased depth of field. Taking the filter off will already be beneficial and the camera does well at ISO 200 so you could be shooting at f/4.0 next time and the clips will be sharper

 

Lens wise you have the best lenses there are no other alternatives unless you have a dome

 

I have an adapter to mount the Inon UFL165AD and I have to say it is much more sharp when you have a fisheye

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