4/7/2023 0 Comments Rawdigger green raw exportWe've provided LR adjustments to remove the green noise with suggestion in the future to monitor the exposure. Imagewerx as explained your first picture of the yellow car P1070919.RW2 was grossly underexposed causing the green shadow noise. That's why I suggested using a +0.33 EV Exposure Compensation setting and leaving it that way in the camera! You can download a FREE RawDigger trial and run some tests with bracketed exposures to see what compensation works best with different subjects. I'm guessing the best ETTR setting for this image would be ~0.0 to 0.33 Exposure compensation so your camera's metering is pretty accurate. Andrew Rodney's links provide some good articles on ways to accomplish this objective. You need to compensate for this when shooting. This will cause the camera to inflate the Exposure setting beyond just the camera's +0.66EV Exposure Compensation setting. Two things are different with this image, 1) Exposure Compensation is set to +0.66 EV and 2) the primary central subject is dark green versus bright yellow. The chrome and glass reflections are also clipped, which is OK since they are very bright and have no detail. The white car in the background and pebbles have clipped highlights. The P1080230.RW2 file is actually slightly overexposed (7.7% Green/Green2) with very few underexposed pixels (1.0% or less). Still under exposed(see stats) and Histogram.Īndrew that's not what I'm seeing using RawDigger with its default settings for Over and Under Exposure as shown below. for applying it to other underexposed image files with similar green noise. However, it does not appear necessary with this image file using the above settings.Ħ) You can create a Develop Preset with just 'Graduated Filter' and 'Noise Reduction' checked. I used the right side air intake as shown below and then adjusted the Amount control to 0, which restricts the -100 Saturation to the shadow areas.ĥ) If you see any areas of the image that have become unsaturated you can use the Graduated Filter Brush tool with the ALT key to remove the desaturation. What can we do to salvage this and similar underexposed raw files? Some suggestions have already been given, but I'll add one more that appears to work quite well using the Color Range Mask controlġ) Adjust the Detail panel settings to reduce the Luminance and Color noise (see my settings below).Ģ) Add a Graduated Filter that is dragged off the image so it applies settings to the whole image, which is very quick and simple!ģ) In the Graduated Filter panel set Saturation to -100.Ĥ) Next select the Color Range Mask and use the eyedropper with 'left-click and drag' to sample an area that is noisy. (It's not possible to see the actual camera raw data using the LR Histogram!) RawDigger Histogram Showing Actual Raw Data The shadows are obviously at even a lower level and down in the noise. So how bad is the exposure in this raw file? The majority of the image data is clumped at ~500 out of 4096 maximum level, which is about level -3.0 EV. I suggest setting it to +0.33 and leaving it there, which will get you a lot closer to ETTR. This is actually just the opposite (ETTL) and will increase noise. Looking at the P1070919.RW2 file with ExifTool you have the camera's Exposure Compensation set to -.66 EV or -2/3 Stop. That may very well be the problem– How are you judging the exposure and correcting it? ![]() But on a very few occasions my camera still under exposes and when I boost the shadows I'm left with very obvious green noise. I'm using Lightroom Classic CC to edit Panasonic RW2 RAW files and always do my best to ETTR (Expose To The Right).
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