This is a 49mm screw-in lens hood and a top-of-the-line Nikon Arcrest II protect filter. A KANI ultra-thin step-up ring is used to attach the 52mm Arcrest II. The lens hood is almost the same diameter as the RX1R lens, so it doesn't look like an add-on. Attach the protect filter to the camera body. A 62mm filter can be attached to the tip of the hood, making it very easy to attach and remove black mist or CPL filters. For the RX1 series, which boasts the highest image quality, the Arcrest is an amazing filter, to the point where you can't imagine using anything else. It has the advantage of anti-static properties, putting it a step ahead of Kenko. There are no noticeable scratches, and it's still in great condition. Other items: Close-up No.3 (2-group lens) 55mm to 52mm step-up ring This enhances the macro function. I no longer need these items as I've sold the camera body. RX1 series owners, please take a look.