Ttartisan 23mm 1.4 is a compact, wide-angle permeable lens for mirrorless cameras with Fujifilm X mounting. The lens is very bright, which allows you to work in difficult lighting conditions and provides control over the depth of field. The 10 leaf aperture provides a pleasant bokeh effect. The optical design of the lens is eight elements in six groups. The lens contains one low dispersion element and three elements with a high index that combine to eliminate various aberrations, while ensuring high color accuracy and sharpness. Specification: focal length: 23mm aperture range: f/1.4 - f/16 Fastening: Fujifilm X Minimum sharpening distance: 20 cm optical structure: 8 elements in 6 groups Number of aperture leaves: 10 filter diameter: 43mm Weight: 225g