.Viltrox has actually introduced a brand-new full-frame 40mm F2.5 autofocus prime lens for Sony E-mount mirrorless video cameras. It coincides lense the business launched along with a Nikon Z-mount previously this year.Optical designThe brand new Viltrox 40mm prime lense is made for full-frame cams, yet you can easily still use it on APS-C sensing units. Nevertheless, on a crop sensing unit cam, it will possess an equal focal length of around 60mm. The lens is constructed along with 10 factors in 6 groups. These consist of one extra-low scattering (ED) aspect, 3 higher refractive mark (HR) factors, and one aspherical component. Moreover, the lens includes a nano-coating. Viltrox states this minimizes ghosting as well as dazzle for more clear, more contrast-rich images.Wide max apertureThe new Viltrox 40mm prime lens possesses an optimum eye of F2.5, which should offer really good low-light performance as well as create it much easier to achieve a superficial deepness of area. The eye uses a 7-blade concept however, Viltrox states that it still provides a "beautiful bokeh" in out-of-focus areas.AutofocusThe autofocus body on the new Viltrox 40mm lens utilizes an STM (stepping motor). The company says this provides quickly as well as quiet auto-focus. On top of that, Viltrox mentions the lens presents low emphasis breathing, which is actually excellent for video make use of. Focus breathing takes place when the photo dimension changes somewhat as you take concentration. The 40mm lense additionally supports eye and also face AF methods on Sony video cameras. The minimum concentration span is only over 13 ins (0.34 meters). BuildThe brand-new Viltrox 40mm prime lense is lightweight at only 5.9 ozs (167 grams). It is actually also small, measuring 2.4 inches (59.5 mm) in duration as well as 2.6 ins (65 mm) in diameter. Regardless of its dimension, Viltrox mentions the lense possesses a durable building and construction for lasting resilience. It also has a weather-resistant design with an anti-fouling covering on the frontal glass. The filter size is actually 52 mm, and also the lense features a tiny petal-style lense hood.What our team thinkA 40mm lense is an underused focal size. It's looked at closer to just how our team view the globe along with our eyes than a common 50mm lens. A 40mm lens is also an excellent all-round central span. Viltrox's brand-new 40mm prime lense has a reasonably vast maximum eye of F2.5, thus you will certainly have the ability to accomplish a superficial depth of industry when it is actually vast open. It is going to also perform well in reduced lighting. Among the best functions of Viltrox's brand-new lens is its own affordable price. If you are trying to find a 40mm prime lense, the Viltrox is actually a terrific spending plan possibility to consider.AvailabilityThe brand-new Viltrox AF 40mm F2.5 full-frame prime lens for Sony E-mount mirrorless cameras is accessible right now. It sells for $168.