In this video we will unboxing Viltrox EF-EOS M2 mount adapter. This Viltrox EF-EOS M2 adapter is designed to allow mirrorless Canon M series to use Canon EF lenses series. Additionally by using this Viltrox EF-EOS M2 mount adapter, the focal length of your lens can be enlarged 0.71 times greater than the default. This will help to enlarge 1 aperture level. So, for example, you use a fix lens with an f1.8 aperture by using this speed booster adapter from Viltrox, you can increase it to f1.2. The light captured by the camera sensor will also be greater because of this speed booster.
If previously by using a 50mm lens it feels like using an 80mm lens, but by using Viltrox speed booster. The distance will be much similar to the full frame camera. If you are still confused about what a speed booster is. You can just imagine the speed booster as some kind of magnifying glass mechanism that makes the camera sensor can capture more light because of the glass system inside. For more details, you can see the example at the end of this video.