TTArtisan 250mm F5.6 Reflex M42 Mount Lens, Full Frame Manual Telephoto Doughnut Bokeh Lens Compatible with M42 Mount Cameras with Lens Hood/Lens Filter

【Telephoto Reflex Lens】 TTArtisan 250mm F5.6 Reflex is a compact telephoto manual lens. Due to the characteristics of its catadioptric design, the weight and size can be well controlled. It is designed for the M42-mount. But with an adapter, the lens is compatible with Sony, Fujifilm, Canon, Nikon and other cameras. (Note: Adapter Ring is sold Separately, Not included in the package)
【Fantasy Doughnut Bokeh】 Use the TTAritsan 250mm F5.6 Reflex Lens to create a dreamy and special donut bokeh. This special bokeh combined with rich colors creates a unique imaging style that is very attractive.
【Highly Reflective Metal Mirror】 The reflectivity of light in a reflex lens plays a crucial role in the final image, and the TTArtisan 250mm F5.6 Reflex uses a metal mirror structure with a reflectivity of up to 98% to reduce the attenuation of light after two reflections.
【Distinctive Retro Look, Weighs Only 380g】 The lens design is classic and retro, with a delicate diamond-shaped structure of the focus ring and the bayonet ring that adds friction when using the lens and has a nice tactile quality to it. Because of the special optical design of the reflex ens, it is lighter and smaller than the conventional lens of the same specification.
【Optical Design】 6 Elements in 5 Groups, 48-layer highly reflective medium, and Multi-layer ultra-low AR coatings. Aviation Aluminium Anodised Excellent Build.

Hello,