Tokina SZ 500mm F8 Reflex MF Telephoto Mirror Micro Four Manual Interchangeable Part Number 264072 Lens, Thirds, Focus, Mount,

[Reach the Moon] A super telephoto lens that lets you reach out and touch the moon. A mirror lens with a focal length of 500mm and a compact body just 165mm long. [Catadioptric system combines compactness with super-telephoto capabilities] The use of catadioptric optics makes it the same size as a standard lens, making it the perfect fit for compact mirrorless cameras. [A unique world created by mirror lenses with a unique "ring bokeh" effect] The "ring bokeh" effect with a hollowed-out center is a distinctive feature of mirror lenses. It creates a fantastical world. Can also be used as a telemacro lens: The minimum focusing distance is 1.7m, and the maximum magnification is 1:2.86. When using macro photography, you can capture insects, flowers, and other subjects from a distance. [Mounting mount] Micro Four Thirds mount *The mounting mount can be changed by using the separately sold "Kenko T-Mount Adapter II".