.Viltrox has actually introduced a brand new full-frame 40mm F2.5 autofocus prime lens for Sony E-mount mirrorless video cameras. It's the same lens the business released along with a Nikon Z-mount earlier this year.Optical designThe brand-new Viltrox 40mm prime lens is actually created for full-frame electronic cameras, yet you may still use it on APS-C sensing units. However, on a crop sensor video camera, it is going to have an equivalent focal length of around 60mm. The lense is actually constructed with 10 components in six teams. These consist of one extra-low distribution (ED) element, three high refractive index (HR) aspects, and one aspherical component. Furthermore, the lens includes a nano-coating. Viltrox mentions this reduces ghosting and also flare for more clear, much more contrast-rich images.Wide maximum apertureThe new Viltrox 40mm prime lense has an optimum eye of F2.5, which must offer good low-light functionality and make it simpler to attain a superficial depth of industry. The eye makes use of a 7-blade design having said that, Viltrox claims that it still supplies a "gorgeous bokeh" in out-of-focus areas.AutofocusThe auto-focus unit on the brand new Viltrox 40mm lens makes use of an STM (stepping electric motor). The firm mentions this delivers swiftly and peaceful autofocus. In addition, Viltrox says the lens features marginal focus breathing, which is actually great for online video use. Concentration breathing takes place when the image measurements changes somewhat as you pull concentration. The 40mm lens also supports eye and also skin AF methods on Sony cams. The lowest focus distance is only over thirteen ins (0.34 meters). BuildThe brand-new Viltrox 40mm prime lens is light-weight at simply 5.9 ounces (167 grams). It's also small, determining 2.4 inches (59.5 mm) in size and 2.6 inches (65 mm) in diameter. In spite of its measurements, Viltrox mentions the lense has a strong construction for enduring resilience. It additionally possesses a weather-resistant concept with an anti-fouling layer on the frontal glass. The filter dimension is actually 52 mm, and the lens includes a little petal-style lense hood.What we thinkA 40mm lens is an underused central size. It's thought about closer to how our team view the globe with our eyes than a conventional 50mm lense. A 40mm lens is actually additionally a fantastic all-round focal duration. Viltrox's brand-new 40mm prime lens has a reasonably broad optimum aperture of F2.5, therefore you are going to have the ability to attain a superficial depth of field when it's broad open. It will certainly additionally carry out properly in low light. One of the most ideal features of Viltrox's brand-new lense is its own affordable. If you are actually looking for a 40mm prime lens, the Viltrox is actually a fantastic budget possibility to consider.AvailabilityThe brand new Viltrox AF 40mm F2.5 full-frame prime lense for Sony E-mount mirrorless video cameras is actually offered now. It sells for $168.