7Artisans 75mm F1.25, Full-frame lens, 7/6, Leica M

75mm F1.25 LM mount Large aperture portrait lens

This is the world's smallest F1.25 portrait focal length lens that can be combined with a rangefinder or micro-camera. Based on the very simple Sonner structure, the optical design of 75MM F1.25 is completed using 7 sets of 6 sets of high refractive index optical lenses under the limit optimization of modern algorithms. The classical low-polishing process is used for lens processing. The high-precision lens has high precision, and the mechanical structure is designed for both volume and stability. A large number of brass structural parts are used, and the weight of 600 grams can be comfortably placed between the two fingers to slide and focus. The 75mm unique compressed coke external portrait is more powerful than the 35MM and 50MM. With the large aperture, it can cope with the creation of portrait works under various kinds of light.

And the mirror door can be opened and closed by rotating the focusing ring.