.Viltrox has launched a brand new full-frame 40mm F2.5 autofocus prime lens for Sony E-mount mirrorless video cameras. It's the same lens the provider launched along with a Nikon Z-mount earlier this year.Optical designThe brand-new Viltrox 40mm prime lense is developed for full-frame video cameras, yet you may still utilize it on APS-C sensors. Nevertheless, on a plant sensing unit electronic camera, it will certainly have a comparable central duration of around 60mm. The lens is actually created along with 10 factors in 6 groups. These feature one extra-low dispersion (ED) factor, three higher refractive mark (HR) components, as well as one aspherical element. Furthermore, the lense includes a nano-coating. Viltrox claims this minimizes ghosting and dazzle for clearer, extra contrast-rich images.Wide maximum apertureThe brand new Viltrox 40mm prime lens has a max aperture of F2.5, which need to offer good low-light functionality and make it much easier to attain a shallow deepness of area. The eye uses a 7-blade style however, Viltrox asserts that it still supplies a "beautiful bokeh" in out-of-focus areas.AutofocusThe auto-focus body on the brand new Viltrox 40mm lense makes use of an STM (stepping motor). The firm states this supplies quickly and quiet autofocus. On top of that, Viltrox mentions the lens features marginal emphasis breathing, which is actually excellent for online video usage. Emphasis breathing develops when the photo size modifications a little as you draw emphasis. The 40mm lens additionally supports eye and skin AF methods on Sony cams. The lowest focus range is actually simply over thirteen ins (0.34 meters). BuildThe brand new Viltrox 40mm prime lense is light in weight at merely 5.9 ozs (167 grams). It's also sleek, determining 2.4 ins (59.5 mm) in length and also 2.6 inches (65 mm) in dimension. Even with its size, Viltrox points out the lens possesses a strong building for enduring durability. It additionally possesses a weather-resistant design with an anti-fouling finish on the front glass. The filter dimension is 52 mm, as well as the lense includes a tiny petal-style lense hood.What our team thinkA 40mm lense is an underused central duration. It is actually thought about closer to exactly how our experts find the world with our eyes than a standard 50mm lense. A 40mm lense is also an excellent all-round focal size. Viltrox's brand-new 40mm prime lens possesses a reasonably vast max aperture of F2.5, therefore you will have the ability to achieve a superficial deepness of industry when it's vast available. It will definitely likewise perform effectively in low lighting. Among the most effective functions of Viltrox's new lense is its low price. If you are actually looking for a 40mm prime lense, the Viltrox is actually a fantastic finances possibility 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.