The XCD 2,5/25V features an optical structure of thirteen elements in ten groups, including four aspherical elements and three ED elements, meeting the high-resolution requirements of 100-megapixel sensors. This ensures images are sharp and crisp from the centre to the edges while effectively suppressing chromatic dispersion.

With its precise optical design, the XCD 2,5/25V maintains a compact body while offering superior resolution, colour fidelity, and a large aperture. Compared with the XCD 4/21 with an f/4 maximum aperture, the smaller and lighter XCD 2,5/25V boasts an f/2.5 maximum aperture.

The XCD 2,5/25V's robust close-up capabilities also showcase its exceptional optical quality. Its minimum focusing distance is 25cm with a maximum image scale of 1:5.8. When shooting, the wide-angle view aids in flexible composition, while the large aperture accentuates the subject, enhancing the expressiveness of close-up subjects like gourmet dishes and flowers.