Viltrox AF 9mm f/2.8 Lens for Nikon Z Mount

Viltrox AF 9mm f/2.8 Lens for Nikon Z Mount (APS-C) Summary

The Viltrox AF 9mm f/2.8 Lens for Sony E is an ultra-wide angle prime lens for crop format (APS-C) Sony E-mount mirrorless cameras. With a compact build, 58mm front filter thread, and internal focusing design, it offers a great combination of portability and performance for APS-C photographers and content creators.

The lens offers a 13.5mm equivalent focal length on APS-C format bodies, and is particularly suited to landscapes, interiors, architecture, and video, where a wide field of view is beneficial.

Viltrox’s AF 9mm lens employs an advanced optical formula with 11 groups and 13 elements, which includes three ED glass elements, three high-refractive index elements, and two aspherical elements. The optical design helps with distortion control and reduces chromatic aberrations while rendering edge-to-edge clarity. Autofocus is driven by a quiet STM motor, and there’s an electronic aperture for control over depth of field, or exposure when shooting video. With internal focusing the lens retains a constant barrel length for consistent handling and easy balancing on a gimbal stabiliser.

The front element features a nano multi-coating and a water-repellent treatment to reduce flare, ghosting, and reduce the impact of dirt and smudges, while making it easier to clean. At just 0.13m minimum focusing distance, this wide lens can also capture close-up subjects with dramatic perspective, adding flexibility to stills and video content creation.

Viltrox AF 9/2.8 E Key Features

• 13.5mm equivalent field of view on APS-C Sony E cameras
• Optical design with 11 groups and 13 elements including 3 ED, 3 HR and 2 aspherical
• Fast f/2.8 aperture for low-light and depth of field control
• Silent STM autofocus motor with electronic aperture control
• Minimum focus distance of 0.13m for close-ups
• Nano multi-coating reduces flare and ghosting in strong light
• Water-repellent and anti-smudge coating on the front element
• Internal focusing maintains constant barrel length
• 58mm filter thread
• Dust and water resistant construction
• Firmware updates supported via a USB-C port

Viltrox AF 9mm f/2.8 Lens for Nikon Z Mount (APS-C) in More Detail

Ultra-wide angle for APS-C

With a 9mm focal length, this prime lens provides a 13.5mm equivalent view on Sony APS-C cameras, which is exceptionally wide, and suitable for both stills and video. This type of wide angle lens has traditionally been used for landscapes, architecture, interiors, and travel, or any subject where you want to capture more of the scene.

Optical design

The optical design comprises of 11 groups with 13 elements, including three ED glass elements to reduce chromatic aberrations, three high-refractive index elements to control distortion, and two aspherical elements that maintain sharpness across the frame. The lens produces results which show good contrast and colour, even when shooting wide open at f/2.8 aperture.

Lens coatings

Viltrox has applied a high-definition nano multi-coating to the lens surfaces, which reduces flare and ghosting when shooting towards bright light sources. The front element is also protected from dirt and debris with a water-repellent coating, which makes it easier to clean.

Autofocus and handling

An STM motor delivers quiet AF for both video and stills. Electronic aperture control provides smooth adjustments, while the constant barrel length from the internal focusing system makes it easier to use with filters or in a gimbal.

Build quality

The lens has a 58mm screw-in filter thread and a dust and water resistant design for outdoor photography. A USB-C port in the mount allows for simple firmware updates.

What’s in the box

• Viltrox AF 9mm f/2.8 Lens for Nikon Z Mount (APS-C)
• Front and rear lens caps