I have taken advantage of using clear plexiglass when picturing products for Infinity Glass. By lighting the background and subject separately it produced a perfect clipping path with a pure white (#ffffff) background straight from camera. I tethered my Canon 6D using it's WiFi function with Adobe Lightroom. You can see below by displaying the highlights the 'red fill' shows how well it grips around the product.
This method is ideal for shooting in bulk for eCommerce websites freeing up more time for retouching.
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Very clever! Thank you for sharing this!