An innovative solution for cinematographers and photographers alike, the Metabones Nikon G to Bmcc Micro 4/3 Speed Booster is a high-quality, durable tool that enables the mounting of a Nikon G lens to a 2.5k Cinema Camera. This compact and versatile device not only increases the angle of view but also enhances the maximum aperture, providing you with more control over your shooting conditions.The Speed Booster employs a sophisticated 6-element optical design, incorporating ultra-high index glass to ensure optimal optical performance, even at the largest apertures. It amplifies the maximum aperture by 1 1/3 stops, reaching an impressive maximum of f/0.8. This reduces the crop factor from 2.39x to a more manageable 1.53x, offering a wider field of view and faster lens speed.But the benefits don't stop there. The Speed Booster also boosts the lens' Modulation Transfer Function (Mtf), which is a measure of how faithfully the lens transfers detail from the object to the camera sensor.