So it was my fault. Somehow I concluded from the product description that this device is something other than a light shield. In fact, it cannot enlarge, enhance, scan, and has no slide or film slot. I'm not sure how you should use it. It's useless as far as I can tell.
Canon CanoScan Lide 300 Scanner, Compact Design: 1.7 x 14.5 x 9.9 inches
22 Review
Pacific Image PowerFilm CCD Scanner: Fast ๐ท and Automated 35mm Film Scanning at 6MP Speed!
11 Review
Black Canon Selphy CP1300 Wireless Compact Photo Printer: AirPrint and Mopria Device Printing
16 Review
Experience Ultimate Color Accuracy with Epson Perfection V600 Colour Flatbed Scanner
15 Review