.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 lense the business discharged along with a Nikon Z-mount previously this year.Optical designThe brand-new Viltrox 40mm prime lense is created for full-frame video cameras, however you can easily still utilize it on APS-C sensing units. Nevertheless, on a plant sensor electronic camera, it will certainly possess a comparable focal length of around 60mm. The lense is actually designed along with 10 elements in six teams. These feature one extra-low scattering (ED) factor, three high refractive index (HR) components, and also one aspherical factor. Additionally, the lens features a nano-coating. Viltrox mentions this reduces ghosting and flare for more clear, much more contrast-rich images.Wide optimum apertureThe brand new Viltrox 40mm prime lens possesses an optimum eye of F2.5, which ought to offer excellent low-light efficiency and also create it simpler to attain a superficial depth of area. The iris utilizes a 7-blade concept nonetheless, Viltrox states that it still provides a "attractive bokeh" in out-of-focus areas.AutofocusThe autofocus system on the brand new Viltrox 40mm lense uses an STM (tipping motor). The company mentions this supplies quick and quiet auto-focus. Moreover, Viltrox states the lense shows marginal concentration breathing, which is actually great for video recording usage. Focus breathing happens when the picture dimension adjustments somewhat as you pull emphasis. The 40mm lens also sustains eye as well as face AF settings on Sony cams. The minimum required concentration range is simply over thirteen inches (0.34 gauges). BuildThe brand-new Viltrox 40mm prime lens is actually lightweight at only 5.9 ozs (167 grams). It is actually additionally sleek, measuring 2.4 ins (59.5 mm) in size as well as 2.6 ins (65 mm) in size. Despite its own size, Viltrox mentions the lens has a robust building for resilient durability. It likewise possesses a weather-resistant layout with an anti-fouling finishing on the frontal glass. The filter dimension is actually 52 mm, and the lense comes with a little petal-style lens hood.What we thinkA 40mm lens is an underused focal size. It is actually considered closer to just how our company observe the planet along with our eyes than a basic 50mm lense. A 40mm lense is actually also a wonderful versatile focal span. Viltrox's new 40mm prime lens possesses a fairly wide max aperture of F2.5, therefore you are going to manage to achieve a superficial deepness of industry when it's large available. It will definitely also perform well in low lighting. Among the greatest components of Viltrox's brand new lens is its small cost. If you are actually looking for a 40mm prime lens, the Viltrox is a terrific finances choice to consider.AvailabilityThe brand-new Viltrox AF 40mm F2.5 full-frame prime lense for Sony E-mount mirrorless electronic cameras is actually available currently. It sells for $168.