0.9,af Apr 2026

This firmware update is designed for the Viltrox AF 20mm f/2.8 FE, a popular budget-friendly ultra-wide-angle lens for Sony E-mount cameras.

We have had several of these updates take place throughout 2020 so now is a good time to make sure your glass is up to speed! Let' Facebook·7Artisans 0.9,af

Depending on your field, "0.9,af" may also appear in these specialized scientific or technical contexts: This firmware update is designed for the Viltrox AF 20mm f/2

: Researchers studying vacuum nano-triodes have analyzed devices with internal capacitances as low as 0.9 aF (attofarads), which allows for operation in the terahertz (THz) domain. 0.9,af