So i'm shooting product photos for an auction and I shoot vertically a lot. Usually I turn the camera clockwise, with the camera bottom being on my left. When I take the picture, the left edge of the photo seemed shadowed or slightly darker. I though...
Two softboxes, equally spaced, pointing towards the wall on a slight angle inward. If I shoot horizontally, both the left and right sides are equally lit.
Softboxes. Here are two undedited examples. I'm simply turning the camera opposite ways. I cropped it slightly, but they were both shot vertically . First photo has the bottom of my camera facing the right. Brand new camera, used lens.