Chinese manufacturer, Zhong Yi Optics, has released a new version of its popular 135mm f/2.8 lens for Canon EF, Canon RF, Nikon F, Nikon Z and Sony FE mounts.

Angled view of the new Mitakon 135mm f/2.5 APO portrait lens. (Source: Zhong Yi Optics.)

The new Mitakon 135mm f/2.5 APO portrait lens is 0.3EV faster than the original lens and features a metal barrel and mount plus an optical design (shown below) comprising nine elements in seven groups and including two Super ED (extra-low dispersion) glass and two ultra-high refraction index glass elements, which are positioned to mimimise chromatic aberrations and ensure the highest possible resolution across the frame. A nine-bladed aperture creates a circular aperture for smooth, buttery bokeh, while the combination of the 135mm focal length and fast f/2.5 maximum aperture provide great control of depth of field for effective separation of the subject from the background.

This diagram shows the optical design of the new Mitakon 135mm f/2.5 APO portrait lens. (Source: Zhong Yi Optics.)

This manual focus  135mm lens has an internal focus design, which enables angle-critical attachments like filters and matt boxes to be used hassle-free. The long focus throw enables precise focusing on targeted objects and focus breathing is designed to be minimal. Its minimum focus is 100 cm, with a maximum magnification of 0.1x.  The lens also boasts clear scale markings on the aperture and focus rings. The lens weighs 845 grams and it 137 mm long with a diameter of 79 mm. It accepts 67 mm filters.

The new Mitakon Speedmaster 135mm f/2.5 lens is available now on the company’s official website and through authorised resellers. Click here for full details.