How does the WonderPana FreeArc Essentials 0.6 Nd Soft Edge Kit revolutionize your photography experience This innovative kit is designed to provide the freedom to use and rotate 66 and 145 filters on your wide and ultra-wide angle lenses. Typically, the construction of these lenses makes it impossible to install filters due to the absence of filter threads. Moreover, standard filter sizes often fail to adequately cover the lens's wide-angle view. The WonderPana FreeArc kit changes this narrative by offering a comprehensive solution for mounting the Fotodiox collection of both round and square filters. The all-metal core attaches directly onto the lens with a secure mounting system, allowing you to mount any of Fotodiox's new 'slimline' 145mm round filters. Ideal for panorama, nature, architectural, fashion, and event photographers, as well as analog and digital filmmakers, the WonderPana FreeArc system offers unparalleled filter flexibility. The WP66 square filter holders mount without tools on either side of the core, enabling the photographer to easily slide in Fotodiox's 6.6"" square filters. These filters, among the largest and most durable in the industry, are manufactured by a high-end optics manufacturer. The FreeArc's square filter stage is rotatable 360 degrees, accommodating either two square filters or one round and one square simultaneously. The included Fotodiox Pro Nd Filters are true neutral density filters designed to darken the image evenly, offering a neutral gray color for creative photography applications. The Nd16 filter provides a +4 stop Ev value, allowing you to slow down the shutter speed or use a larger aperture in bright light conditions. The Graduated Neutral Density filter darkens the sky while leaving the foreground unaffected, perfect for capturing sunsets or sunrises where the sky is blown out and the ground is dark. These two filters combined offer the perfect solution for times when you want to darken the overall scene and further darken the sky, such as beach or snow sunsets and sunrises. Fotodiox Nd and Grad Nd filters are a true neutral gray and do not color cast the images, ensuring your photos remain as true to life as possible. Experience the freedom and versatility of the WonderPana FreeArc Essentials 0.6 ND Soft Edge Kit today..