.Viltrox has launched a brand-new full-frame 40mm F2.5 auto-focus prime lense for Sony E-mount mirrorless video cameras. It's the same lense the company launched along with a Nikon Z-mount earlier this year.Optical designThe brand-new Viltrox 40mm prime lense is actually made for full-frame video cameras, but you can still utilize it on APS-C sensors. Nonetheless, on a crop sensing unit cam, it is going to possess an equal central size of around 60mm. The lense is constructed with 10 aspects in six groups. These consist of one extra-low distribution (ED) factor, three high refractive mark (HR) factors, and one aspherical factor. Additionally, the lense features a nano-coating. Viltrox states this reduces ghosting and also dazzle for more clear, much more contrast-rich images.Wide max apertureThe new Viltrox 40mm prime lense possesses an optimum eye of F2.5, which need to provide excellent low-light performance and also produce it simpler to obtain a shallow deepness of field. The eye utilizes a 7-blade concept having said that, Viltrox claims that it still provides a "stunning bokeh" in out-of-focus areas.AutofocusThe auto-focus system on the brand new Viltrox 40mm lens makes use of an STM (stepping motor). The company says this supplies quick as well as peaceful auto-focus. In addition, Viltrox mentions the lens features minimal emphasis breathing, which is actually excellent for video recording usage. Emphasis breathing takes place when the photo dimension changes a little as you pull focus. The 40mm lens additionally assists eye and skin AF settings on Sony video cameras. The minimum required concentration proximity is simply over 13 ins (0.34 gauges). BuildThe new Viltrox 40mm prime lens is light-weight at simply 5.9 ozs (167 grams). It is actually also sleek, determining 2.4 ins (59.5 mm) in size and also 2.6 inches (65 mm) in diameter. Even with its dimension, Viltrox points out the lense has a sturdy building and construction for resilient resilience. It also possesses a weather-resistant style along with an anti-fouling coating on the frontal glass. The filter size is actually 52 mm, and also the lens possesses a little petal-style lens hood.What we thinkA 40mm lens is an underused focal duration. It is actually taken into consideration closer to just how we view the globe with our eyes than a standard 50mm lense. A 40mm lens is additionally a terrific versatile central duration. Viltrox's new 40mm prime lens has a relatively broad max eye of F2.5, therefore you are going to have the capacity to achieve a shallow intensity of industry when it's broad available. It will definitely likewise execute well in reduced light. Some of the very best attributes of Viltrox's new lense is its own affordable price. If you are looking for a 40mm prime lens, the Viltrox is actually an excellent spending plan possibility to consider.AvailabilityThe new Viltrox AF 40mm F2.5 full-frame prime lense for Sony E-mount mirrorless cams is actually available now. It retails for $168.