.Viltrox has released a new full-frame 40mm F2.5 autofocus prime lense for Sony E-mount mirrorless video cameras. It's the same lense the provider launched with a Nikon Z-mount earlier this year.Optical designThe brand new Viltrox 40mm prime lense is actually made for full-frame cams, but you can still use it on APS-C sensors. However, on a crop sensing unit camera, it will definitely have a comparable focal length of around 60mm. The lense is designed along with 10 factors in six teams. These feature one extra-low distribution (ED) component, three high refractive mark (HR) elements, as well as one aspherical factor. Additionally, the lense includes a nano-coating. Viltrox claims this decreases ghosting and also dazzle for clearer, more contrast-rich images.Wide maximum apertureThe brand-new Viltrox 40mm prime lense possesses a max eye of F2.5, which should provide excellent low-light functionality and make it much easier to obtain a shallow deepness of field. The iris makes use of a 7-blade style however, Viltrox claims that it still supplies a "stunning bokeh" in out-of-focus areas.AutofocusThe autofocus unit on the brand-new Viltrox 40mm lens uses an STM (stepping electric motor). The provider mentions this supplies fast and silent auto-focus. Furthermore, Viltrox states the lens displays minimal focus breathing, which is actually terrific for video clip usage. Focus breathing develops when the graphic size improvements a little as you take emphasis. The 40mm lens additionally assists eye and also skin AF settings on Sony electronic cameras. The lowest concentration span is actually only over thirteen ins (0.34 meters). BuildThe brand new Viltrox 40mm prime lense is light in weight at simply 5.9 ozs (167 grams). It is actually also portable, measuring 2.4 inches (59.5 mm) in duration and also 2.6 ins (65 mm) in size. Even with its own measurements, Viltrox states the lense possesses a durable building and construction for lasting sturdiness. It additionally has a weather-resistant design along with an anti-fouling covering on the front glass. The filter measurements is 52 mm, as well as the lense includes a little petal-style lense hood.What our company thinkA 40mm lense is an underused focal length. It's considered closer to how our experts view the world along with our eyes than a regular 50mm lense. A 40mm lens is actually also a fantastic all-round central length. Viltrox's brand-new 40mm prime lens has a fairly vast optimum aperture of F2.5, therefore you will certainly have the capacity to attain a shallow intensity of area when it's broad open. It will additionally conduct well in low lighting. Some of the most effective functions of Viltrox's new lens is its low price. If you are searching for a 40mm prime lens, the Viltrox is a fantastic budget alternative to consider.AvailabilityThe brand new Viltrox AF 40mm F2.5 full-frame prime lense for Sony E-mount mirrorless video cameras is readily available now. It retails for $168.