A compact prime lens designed for Sony E-mount mirrorless cameras, the Viltrox AF 40mm f/2.5 E Lens pairs a unique focal length with a fairly bright aperture. The incorporated STM stepping motor allows for quick and quiet autofocusing performance. This lightweight lens is ideal for everyday photography and is viable for portraiture as well. The optical design includes multiple high-quality lens elements to reduce optical aberrations and improve overall image quality.