The Lens Ball is an interesting and low priced tool made from K9 Crystal, the same material used for lenses and optics. It creates an upside down and backwards image of whatever you hold it up to… with surprising clarity. These images were created within the first hour of using the Lens Ball. The Lens Ball creates some unique exposure and focal length requirements, and I found the best results to be around 24-35mm, at f4-f10 aperture. I also feel that this tool benefits from HDR exposure stacking or at least keeping a close check on the highlights within the Lens Ball so they don’t blow out.
I found it somewhat challenging to use the Lens Ball at first, as it really requires you to think differently in terms of exposure, f-stop and composition. How you look through the ball and from what angle can drastically alter what is shown through the glass. I found myself stopping down just enough to make sure the entire ball was in focus (around f/7), and then if you want to stop down more from there it would be to get more depth of field in the background. The image from the Lens Ball itself is extremely wide angle and has incredibly wide depth of field.
In post, you can either leave the image as is with an upside down and backwards spherical image, or you can flip the whole photo 180 degrees or select the lens ball and just rotate or perform a horizontal and vertical flip if you want the image on the lens ball to exactly match the background behind it.