K&F Concept Square ND Filter ND1000. I bought this, but I'm selling it because I haven't had a chance to use it. It was unopened, but I opened it to take pictures (see photo 3). Everything in photo 1 is included. I will carefully package it and ship it via Nekopos for safety. ★Free Shipping★ I will ship it via anonymous delivery (Nekopos). If you are paying at a convenience store/ATM, please leave a comment in the transaction message to let me know when you will be able to pay. ⬛︎Quoted from the following site: 【ND Filter】 10-stop reduction (10 f-stops), square ND filter. Filter dimensions are 100 x 100 x 2 mm, applicable to lenses of 82mm or less. It has an ND effect over the entire surface, achieving uniform light transmission. Ideal for slow shutter speed photography. 【ND1000】 While allowing for diverse expressions inherent to the lens with uniform light transmission, it allows you to adjust the slow shutter speed even in strong light environments to smooth out the flow of clouds and waterfalls, and to express light trails. 【Japanese AGC Optical Glass】 High-quality reinforced optical glass is used, significantly reducing lens flare and ghosting, suppressing reflections, and allowing you to freely take bright and colorful photos. It achieves a high transmittance of 99.6%, realizing faithful color reproduction without color cast. 【Water-repellent, Anti-fouling & Anti-drop】 The filter surface is processed with 36 layers of nano-coating, achieving water and oil repellency. You can shoot with confidence even in harsh environments such as rivers, mountains, and deserts. This product has won the German Red Dot Design Award and the iF Design Award. Please use it with confidence.