kowa adapter ring tsn ar ys 41mm 440918Have you ever tried to capture the perfect photo or video through the lens of your binoculars, only to find that your smartphone isn't quite involved? The Kowa Adapter Ring TSN AR YS offers the solution. With this ingenious gadget, you can easily connect your smartphone to Kowa binoculars, specifically tuned for the YF, SV (with the exception of the SV 8x25 and SV 10x25), and BD series (excluding the BDII XD series). Get the most out of your lenses