Original photo, no filter. Took this photo looking up through the red leaves into the sky. I see a lot of these around town, the trees that get the most sunlight have the brightest colors it seems, a redish color. As you can see the sun is beating down in the middle of the day, it's been getting warmer and from what I can tell as the temp goes up the photos get brighter. Don't need any filters here.
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From @treyball