APS-C Format Lens: This 27mm F2.8 Autofocus lens from TTartisan is a Short normal-length lens that is designed for APS-C-format FUJIFILM X-mount mirrorless cameras and provides a 41mm equivalent focal length. | Ideal Aperture: Bright f/2.8 maximum aperture suits working in low-light conditions and also affords greater control over depth of field. This lens is autofocus, with manual focus override. The aperture is also manually adjustable with an aperture ring based on the lens body, from F/2.8 to F/16. | A Carry Anywhere Lens: The 27mm F2.8 from TTartisan is quite a tiny lens when mounted on the cameras. Its Pancake form factor measures less than 3cm thick for an ultra-portable design, which is perfect for carrying anywhere for your everyday shooting. | Ideal Aperture: Bright f/2.8 maximum aperture suits working in low-light conditions and also affords greater control over depth of field. This lens is autofocus, with manual focus override. The aperture is also manually adjustable with an aperture ring based on the lens body, from F/2.8 to F/16. | Optical Design: 6 elements in 5 groups, including 2 high refraction index lenses, which can effectively suppress color difference and control spherical aberrations. Additionally, a 7-blade diaphragm is featured and contributes a smooth bokeh quality. | 56° Angle of View: the lens design renders a 56° angle of view to produce a distinct visual, it is perfect for still-lifes, close-ups, streets, and travel photography.