The second generation of the 7.5mm F2.8 has been optimized in its optical structure. Single glass with a higher refractive index is used in the front glass group to replace the first generation cemented glass. The rear group of optical glass now includes HOYA ED glass, which effectively improves chromatic aberration.

The image quality of the lens has been enhanced accordingly. While correcting various aberrations, the field of view angle has also seen significant improvement. The polishing process of the glass is more precise and complex than in the previous generation. The optical structure of the entire lens still consists of 11 lenses, but the total optical length has been shortened, making the lens more compact than before.

The overall appearance continues the style of the first generation, featuring an all-metal mirror body. The 7.5mm F2.8 Mark II adopts a shell oxidation process, and the lens mount color is now electroplated tungsten steel, making it more beautiful, sturdy, and durable. It is newly adapted to the Nikon Z mount, providing users with more options.

Note: Due to the large shooting angle of the fisheye lens, the hood filter holder will block the imaging, so there is no filter holder or hood included at this time.