Mixing a comfortable wide-angle design with an ultra-fast maximum aperture, the 17mm f/1.4 lens is designed for use with APS-C-format mirrorless cameras and provides a 25mm equivalent focal length. The optical structure of this lens is 9 elements in 8 groups and the angle of view is 81° .
Characterized by its bright f/1.4 maximum aperture, this lens is adept at working in low-light conditions and also affords increased control over depth of field for selective focus control. 
It's a fast and portable lens well-suited to landscape, nature, and street photography.

APS-C 50mm F1.2 adopts the optical structure of 7 elements in 5 groups. The minimum focusing distance is only 0.5m.Length: 60mm, Width: 62mm. The equivalent focus length of full frame is about 75mm——Professional assistant for your Portrait photography.

The TTArtisan M50/0.95 has an optical structure of 11 elements in 8 groups, including 1 large-sized aspherical element and 5 high refractive elements to ensure the image sharpness at wide open. As the largest aperture stop of full-frame photographic lenses, F0.95 perfectly explains the meaning of creamy bokeh and the maximum light it can capture in low light condition. The filter thread of this lens is 67mm. With a size of 74mm*72mm, it only weights 673g. It is still a lens of exquisite size and moderate weight among F0.95 series.

The lens structure of TTArtisan M35/1.4 is 7 sets of 8 pieces, 410g weight, length 73mm, 49mm diameter thread. Referring to the design essence of the 35-cylinder lens of several M-mounts in history, the maximum aperture can be used with the aperture, and the telephoto focus is very soft when the near-point is in focus.

In order to effectively improve the image degradation of the fisheye lens edge, we designed the TTArtisan M11mm F2.8 into 7 groups of 11 pieces. Even when the aperture value is F2.8, it can meet the high image quality requirements of professional users for photos and videos.

M50mm f/1.4 ASPH adopts the optical structure of 10 elements in 8 groups, including an aspherical lens, an abnormal dispersion lens and 8 high refractive index lenses. Such design ensures the image quality from the center to the edge, working well with 60 million pixel digital.
The 11mm F2.8 fisheye lens has a very large depth of field for manual lens use. Exaggerated images and surreal information transmission may open up new inspiration for sports photography and landscape photography.

The lens structure of TTArtisan M21/1.5 is 11 sets of 13 pieces and the length is 70mm. The large aperture of the F1.5 is matched with the wide-angle focal length of 21mm. In the humanities theme, the background can display information while obtaining a spatial stereoscopic effect. A wide enough perspective can be obtained in the creation of scenery.

The 35mm f/1.4 uses the Sonnar structure. The Sonnar structure is a classic optical structure that occupies a dominant position in the medium telephoto and ultra-telephoto lenses. The equivalent full frame is about 52mm, and the closest focusing distance is 0.28m. Good food is more than enough.