.Viltrox has actually released a brand-new full-frame 40mm F2.5 auto-focus prime lens for Sony E-mount mirrorless video cameras. It's the same lens the business launched along with a Nikon Z-mount earlier this year.Optical designThe brand new Viltrox 40mm prime lense is created for full-frame electronic cameras, however you may still use it on APS-C sensing units. Having said that, on a crop sensor camera, it will have a comparable central size of around 60mm. The lens is actually built along with 10 aspects in 6 groups. These consist of one extra-low diffusion (ED) component, three high refractive index (HR) components, as well as one aspherical factor. Additionally, the lens includes a nano-coating. Viltrox states this decreases ghosting and also dazzle for more clear, extra contrast-rich images.Wide optimum apertureThe brand new Viltrox 40mm prime lense has a max eye of F2.5, which should provide really good low-light functionality as well as make it easier to attain a superficial depth of industry. The eye utilizes a 7-blade design nevertheless, Viltrox professes that it still provides a "beautiful bokeh" in out-of-focus areas.AutofocusThe auto-focus device on the brand new Viltrox 40mm lense makes use of an STM (tipping electric motor). The business states this provides swiftly and silent auto-focus. Furthermore, Viltrox states the lense presents low emphasis breathing, which is actually fantastic for online video use. Concentration breathing occurs when the picture dimension improvements slightly as you pull emphasis. The 40mm lens also assists eye and also face AF modes on Sony video cameras. The minimum concentration distance is simply over thirteen inches (0.34 gauges). BuildThe brand-new Viltrox 40mm prime lens is lightweight at just 5.9 ozs (167 grams). It is actually also small, assessing 2.4 inches (59.5 mm) in duration as well as 2.6 inches (65 mm) in diameter. Despite its own size, Viltrox says the lense has a strong building for resilient resilience. It additionally possesses a weather-resistant style with an anti-fouling finish on the front glass. The filter dimension is actually 52 mm, and also the lens possesses a little petal-style lense hood.What our team thinkA 40mm lense is an underused central length. It is actually looked at closer to how our company observe the globe along with our eyes than a standard 50mm lens. A 40mm lens is likewise a terrific versatile focal span. Viltrox's brand-new 40mm prime lense has a fairly broad maximum eye of F2.5, therefore you will certainly have the ability to obtain a shallow intensity of area when it's broad open. It will certainly also do properly in reduced lighting. Some of the most effective functions of Viltrox's brand new lense is its low price. If you are actually seeking a 40mm prime lens, the Viltrox is actually an excellent finances possibility to consider.AvailabilityThe 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.