![]() ![]() The default size is quite suitable for posting on dPreview, so no further processing is required before you upload it. Then use the pull-down menu at the bottom ("Files of type") to change the file type to "JPEG files (*.jpeg)", and save the file. Then rename the histogram to whatever you wish in the "File name" text field toward the bottom. Once the save window opens, select your desired destination folder in the field at the top it defaults to the source directory. To post your RawDigger histogram, save a copy of it by clicking the button at the top left of the histogram window called "Save PNG." This is a bit of a misnomer, since you can also opt to save as a jpeg, which is what you want to do. When you post your histograms,you should always enter a Log-scaled version, but you might also unclick "Log scale" and enter a Linear scaled version as well. On the "Y-Axis Range", click Auto, Log scale, and Grid, and use a max of something like 100K. I like to use 1/3 EV ticks, but you may prefer something else. You can determine this value by opening a "blown" raw file and looking at the max figures: use that value. We placed the selection on a cloud (shown as a grey rectangle positioned close to the right edge of the shot and overlaying the magenta-looking. Check "Show EV Grid" and set your "0 EV" according to your camera. To answer it, let’s open a damaged RAW in RawDigger (we have RawDigger on a Shift-R shortcut in FastRawViewer), and look at the histogram of the portion of the frame that should not contain clipping. Experiment if you don't like the results. For example, try Bin 1/64, with a range of -10 to 0 EV. On the top portion of this window, check "EV-scale X-axis". Once RawDigger digests your file, open the histogram window from "Window > Once you download and install RawDigger, simply drop your raw file on the RawDigger icon or open RawDigger and drop your raw file on the open RawDigger window. It is free, and there are versions for all major platforms. You can download the latest version of RawDigger from ![]() I have been asked to provide a quick tutorial on using RawDigger and posting its histograms.
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