F2 Large Aperture Shoot starry skyUsually a fisheye lens is always matched with bright F/2.8 maximum aperture, but we do our best to finally develop the first fisheye lens with larger aperture F2, which supports working in difficult lighting conditions with greater light intake, especially shooting the starry sky.Customized Rear ND1000 FilterThis ND1000 filter provides a 10-stop exposure reduction across the entire image, allowing the use of a wider aperture or slower shutter speed than normally required. By slowing exposure time, movement may be conveyed more clearly, and by adjusting aperture, depth of field may be more creatively controlled. These abilities are very useful when shooting landscapes, especially in bright sunlight.Circular Fisheye CreationWhile this lens is designed for Aps-c sensors, full frame users can also use it to take circular fisheye images.Landscape PhotographyUltra-wide lens help you capture more beauty. TTArtisan 7.