.Viltrox has launched a brand new full-frame 40mm F2.5 autofocus prime lense for Sony E-mount mirrorless cameras. It's the same lense the provider released along with a Nikon Z-mount previously this year.Optical designThe brand-new Viltrox 40mm prime lens is designed for full-frame cams, but you can still use it on APS-C sensors. Nonetheless, on a plant sensor video camera, it is going to have a comparable focal size of around 60mm. The lens is created with 10 aspects in six teams. These include one extra-low scattering (ED) aspect, three high refractive index (HR) components, and also one aspherical element. In addition, the lense features a nano-coating. Viltrox claims this reduces ghosting and also flare for more clear, a lot more contrast-rich images.Wide maximum apertureThe new Viltrox 40mm prime lense has an optimum aperture of F2.5, which ought to give excellent low-light performance as well as produce it much easier to attain a superficial depth of field. The eye makes use of a 7-blade design however, Viltrox states that it still provides a "gorgeous bokeh" in out-of-focus areas.AutofocusThe autofocus device on the brand-new Viltrox 40mm lense utilizes an STM (tipping motor). The company claims this provides fast as well as quiet autofocus. Furthermore, Viltrox claims the lense presents marginal focus breathing, which is actually great for video make use of. Concentration breathing happens when the graphic measurements changes slightly as you pull concentration. The 40mm lense likewise assists eye as well as skin AF modes on Sony video cameras. The lowest emphasis range is actually only over 13 inches (0.34 gauges). BuildThe brand new Viltrox 40mm prime lens is lightweight at only 5.9 ounces (167 grams). It is actually also compact, gauging 2.4 ins (59.5 mm) in duration and also 2.6 ins (65 mm) in size. Regardless of its size, Viltrox points out the lense has a robust building and construction for durable resilience. It additionally has a weather-resistant style with an anti-fouling layer on the frontal glass. The filter size is 52 mm, and the lense includes a tiny petal-style lense hood.What our experts thinkA 40mm lense is an underused focal size. It is actually taken into consideration closer to how our team view the planet with our eyes than a common 50mm lens. A 40mm lens is also a terrific all-purpose focal span. Viltrox's brand new 40mm prime lense has a fairly wide maximum aperture of F2.5, so you will certainly have the capacity to obtain a superficial depth of field when it's wide available. It will definitely additionally conduct properly in low illumination. One of the greatest components of Viltrox's new lense is its own small cost. If you are actually looking for a 40mm prime lens, the Viltrox is actually a terrific spending plan possibility to consider.AvailabilityThe brand-new Viltrox AF 40mm F2.5 full-frame prime lense for Sony E-mount mirrorless cameras is accessible right now. It retails for $168.