depending on tonality there is a difference when applied in workspace to jpg or orfKey line is one of my favorite art filters, and that's what I used on this shot. Added via Olympus Workspace (I think the art filter result is identical, whether you do it in-camera when you're taking the picture or if you apply it later via Olympus Workspace).
This is a view of PNC Park in Pittsburgh (where the Pittsburgh Pirates play). I didn't have to do anything to get the semi-circle in the sky. That just came up on its own.
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