10/6/2023 0 Comments Panaosnic g7 leeming lut redditThis becomes apparent when we look at a white balanced clip uncorrected. The GH5 tends to push deep colour and wash out cyan and yellow. the GH5 has around 113% over saturated colours Looking at imaging resource tests of the GH5 we can appreciate that the camera colours are oversaturated by default. Sharpening has generally a negative effect all around while noise reduction if required is better performed in the editor. *Noise and sharpness have actually nothing to do with grading but are set to -5 as the GH5 applies sharpening and noise reduction even at -5 setting. The starting point is a CineLike D profile with saturation, noise reduction and sharpness set to -5 all other settings to default as suggested by Paul, there is no need to lower the contrast as CineLike D is already a flat curve. Obviously you do not have to use the LUTs and you can design them yourself however I found that using the Cinelike D LUT I have a very good starting point for colour correction. To help the colour accuracy I have experimented with the Leeming Luts and I want to thank Paul Leeming for answering my obscure questions. With the right filter for the water colour I dive in and with the appropriate white balance card you can get some pretty decent results with custom white balance. I have already posted a whole range of observations on filters in a previous post so am not repeating here. This is the reason filters are essential because reduce the amount of blue or to say better cyan and bring the camera into a range where custom white balance works again. So the colour temperature of water tends to be higher than 10,000K and also the blue is somewhat washed out by scattering. Underwater due to light absorption at longer wavelengths red and orange disappear at depth and blue tends to scatter over suspended particles. Going back to our GH5 instruction manual you can also see that the camera white balance is limited to 10,000K which is the colour of blue sky. Custom white balance with the 8mm fisheye It is possible to buy a larger card such as the reference that is 7.5″x10″ however this is cumbersome and I found the Studio version to work well with the Panasonic GH5 as it only uses the central part of the frame for white balance. I found this card to work well underwater and I use it with a lanyard attached to a clip that I hook on my BCD D rings. In terms of white balance card I use the Whibal G7 Studio 3.5″圆″ (8.9×15.2 cm). In the example above I am taking a picture of a white balance reference card under warm lights that have a colour temperature of 2700K.Īs you can see the auto white balance fails resulting in a yellowish tinge, while the shots taken after the custom white balance is accurate. Let’s see with some examples: Grey card Auto White Balance 8mm Grey card Custom White Balance 8mm When the camera is working outside this range you get a colour cast. Panasonic GH5 advanced user manualįor our GH5 the range where auto works goes is approximately 3200-7500K. This is true on land and on water because auto white balance only works in a specified range of color temperatures. One of the key steps in order to get the best underwater colours in your video is to perform a custom white balance.
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