A few qualifiers:
I was diving at the Socorro Islands and I encountered typical East Pacific waters. 15m vis, fairly blue, but not necesarily conductive to reproducing good colours for photos/video like you would see in the Red Sea, the Carribbean or the Indo/Pacific.
I was using a useless lens (Sony 16mm Pancake) which I'm just going to throw away and not even bother to sell. It was horrible. Results will definitely change using a different lens (hopefully for the better!!).
Ok in summary:
The colour reproduction from the FS100 is poor underwater when compared to what is achievable on a HDSLR
Although the FS100 is incredible in low light topside, it really suffers using anything above 9db/1250ISO underwater as it produces an ugly digital grain apppearance. Best results were achieved with 0db/500ISO. This is a major disappointment for me as one of the reasons why I bought a housing for this camera was due to its amazing topside low light performance.
You DON'T get a green colour cast when you use MWB. You DO get a green colour cast when you use the preset K for White Balance.
You really can't push the WB on this camera. When you do, especially if you are at a high db/ISO the image just falls apart (see image 4 & 5).
IMO MWB worked best when used WITHOUT a filter. Ok I know this goes against everything I've said up until now, but I was wrong ok!!
All images are straight from the camera with no colour correction or other edits. I've posted them at 1280x720, but if anyone wants to look at the original 1920x1080 files then PM and I'll send them over.
Am I happy? No I'm not. This camera should perform a whole lot better than this. I think once I've played around with the images I will get something acceptable, but I was hoping for so much more.....
Ok here are the images:
Image 1 - DEPTH 10M, URPRO BLUE WATER FILTER, MWB, 9bd GAIN
Image 2 - DEPTH 15M, URPRO BLUE WATER FILTER, MWB, 9bd GAIN
Image 3 - DEPTH 30M, URPRO BLUE WATER FILTER, MWB, 9bd GAIN
Image 4 - DEPTH 30M, URPRO BLUE WATER FILTER, MWB, 15bd GAIN
Image 5 - DEPTH 30M, URPRO BLUE WATER FILTER, MWB, 18bd GAIN
Image 6 & 7 Comparison. SAME SHOT BUT IMAGE 6 = 15000K PRESET, IMAGE 7 = MWB.
Edited by SimonSpear, 04 February 2013 - 12:48 PM.