Fotodiox Pro PowerLynx 12-Pin Kit, B4 Lens to MFT Black Magic Pocket Cinema Adapter & Turbopack 9000 Battery w/12 Pin Cable Offers the creative flexibility of a powered zoom lens for a fraction of the price of similar options Includes everything that you need to power-up and mount your B4 lens to the Black Magic Pocket Cinema Camera - all in one easy to use kit A powered zoom adds countless creative possibilities to your videos, and gives you powerful options for framing. Take advantage of the typical 15x and 20x zoom lengths for more flexible with camera placement 24-Month Manufacturer Warranty