The Viltrox AF 40mm F2.5 Air is an ultra-light full-frame prime for Sony E-mount, weighing just 167g so it disappears in a bag for travel and street photography. Ten elements in six groups, including an ED element, three high-refractive elements, and an aspherical element, are aimed at sharp images with pleasing bokeh despite the lens’s compact size. Its 40mm focal length approximates natural eye perspective, making it a versatile choice across portraits, landscapes, and street work rather than a specialized focal length.

• Ultra-light 167g design: Compact enough to carry all day for travel and street photography.
• F2.5 aperture with advanced optics: 10 elements in 6 groups, including 1 ED, 3 HR, and 1 aspherical element, for sharp images and pleasing bokeh.
• Quiet STM autofocus motor: Delivers fast, silent focusing suited to both stills and video.
• Type-C firmware updates with EXIF data transfer: Keeps the lens current and preserves full shooting data in image metadata.
• 40mm natural perspective: Matches roughly what the eye sees, versatile for portraits, landscapes, and street photography.