In my first trip with the GH4 I shot in a open cenote at -35m with the Pana 7-14mm. Some of the takes were shot with MWB done at around -17m (A), and some of them with the MWB done at shooting depth (-35m) (B). All of them at maximum aperture (f/4) and 1/25 (25fps).
I found B colors nicer compared with the greeny A shots but I noticed B shots were much noisier!!. Since my old HC9 was not able to WB under -15m, and I guess on land the electronic adjustments are not extreme enough to notice such a thing, I was very surprised and disappointed with this issue.
In my next trip I'm planning to shoot sharks in deep (-40m) channels in Maldives and I'm definitely going to try red filters in my lenses (Pana 7-14 and pana 12-35) as a work around for white balancing in this situations (red filter plus MWB or AWB. I'll try both).
Which filters would you recommend me. And, most important, how can I put a filter in front of the 7-14mm since it has no thread at all???!!!
EtcMember Since 13 Jul 2008
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