Zhongyi Optics APO 135mm ED for Canon EF F2.5

Lens mount: Canon EF / Model number: APO 2.5/135 ED (EF) Focal length: 135mm / Focus: MF (Manual focus) / Lens construction: 7 groups, 9 elements (2 ED (Extra-low Dispersion) lenses, 2 ultra-high refractive index lenses, 1 ultra-high transmittance lens) / Compatible image size: 35mm full frame Minimum focusing distance: 1.0m / Maximum magnification: 0.1x / Aperture: F2.5-F22 / Aperture blades: 9 / Filter diameter: 67mm Size: Φ79mm x 134mm (excluding mount) / Weight: Approx. 890g Other: Built-in retractable lens hood / Note: Please note that the product design may change without notice. The Zhong Yi Optics APO 135mm F2.5 ED is a mid-telephoto lens ideal for portrait photography. Its APO (apochromatic) design, combining two ED (extra-low dispersion) lenses and two ultra-high refractive index lenses, ensures precise imaging performance all the way to the edges of the image while minimizing chromatic aberration and color fringing. Its nine-blade circular diaphragm also produces exquisite bokeh, softly blending into the background.