Just unveiled, the 7.5mm F2.8 Mark Ii Fisheye Lens for Nikon Z is a testament to superior optical engineering. This second-generation lens boasts a refined optical structure, featuring a single glass with a higher refractive index in the front glass group. This innovative design replaces the first-generation cemented glass, enhancing the lens's performance and image quality.In addition to this, the rear group of the optical glass is now integrated with Hoya Ed glass. This significant upgrade effectively mitigates chromatic aberration, ensuring your images are sharper and more vibrant than ever before. Despite these enhancements, the lens maintains its wide field of view, providing you with an expansive perspective for your photography.The 7.5mm F2.8 Mark Ii Fisheye Lens for Nikon Z also showcases a more intricate and precise polishing process than its predecessor. While the lens still comprises 11 lenses, the total optical length has been reduced, resulting in a more compact design.